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202112220120220 = 225971078531141453
BaseRepresentation
bin101101111101000111101011…
…000101011100010010011100
3222111121201222010102200022101
4231331013223011130102130
5202442401311322321340
61553505023325054444
760400061141151664
oct5575075305342234
9874551863380271
10202112220120220
1159443347226443
121a8028516b7424
1388a113cc77847
1437ca3d84911a4
151857609007c9a
hexb7d1eb15c49c

202112220120220 has 96 divisors (see below), whose sum is σ = 433326657210048. Its totient is φ = 79170672402432.

The previous prime is 202112220120169. The next prime is 202112220120259. The reversal of 202112220120220 is 22021022211202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176495014 + ... + 177636466.

It is an arithmetic number, because the mean of its divisors is an integer number (4513819345938).

Almost surely, 2202112220120220 is an apocalyptic number.

202112220120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202112220120220 is an abundant number, since it is smaller than the sum of its proper divisors (231214437089828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202112220120220 is a wasteful number, since it uses less digits than its factorization.

202112220120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142519 (or 1142517 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202112220120220 its reverse (22021022211202), we get a palindrome (224133242331422).

The spelling of 202112220120220 in words is "two hundred two trillion, one hundred twelve billion, two hundred twenty million, one hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 97 107 194 214 388 428 485 535 853 970 1070 1706 1940 2140 3412 4265 8530 10379 17060 20758 41516 51895 82741 91271 103790 165482 182542 207580 330964 365084 413705 456355 827410 912710 1141453 1654820 1825420 2282906 4565812 5707265 8853287 11414530 17706574 22829060 35413148 44266435 88532870 110720941 122135471 177065740 221441882 244270942 442883764 488541884 553604705 610677355 973659409 1107209410 1221354710 1947318818 2214418820 2442709420 3894637636 4868297045 9736594090 11847140687 19473188180 23694281374 47388562748 59235703435 94444962673 104181556763 118471406870 188889925346 208363113526 236942813740 377779850692 416726227052 472224813365 520907783815 944449626730 1041815567630 1888899253460 2083631135260 10105611006011 20211222012022 40422444024044 50528055030055 101056110060110 202112220120220