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1220301223232 = 267131712325279
BaseRepresentation
bin10001110000011111100…
…111101111010101000000
311022122210220001002211012
4101300133213233111000
5124443134103120412
62332333150140052
7154110126152540
oct21603747572500
94278726032735
101220301223232
11430588255633
121786044b1628
138b0c64cb130
14430c4821320
1521b22107c22
hex11c1f9ef540

1220301223232 has 112 divisors (see below), whose sum is σ = 3155666088960. Its totient is φ = 454359048192.

The previous prime is 1220301223213. The next prime is 1220301223313. The reversal of 1220301223232 is 2323221030221.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 1220301223198 and 1220301223207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6063632 + ... + 6261647.

It is an arithmetic number, because the mean of its divisors is an integer number (28175590080).

Almost surely, 21220301223232 is an apocalyptic number.

It is an amenable number.

1220301223232 is an abundant number, since it is smaller than the sum of its proper divisors (1935364865728).

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

1220301223232 is a wasteful number, since it uses less digits than its factorization.

1220301223232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12325328 (or 12325318 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1220301223232 its reverse (2323221030221), we get a palindrome (3543522253453).

The spelling of 1220301223232 in words is "one trillion, two hundred twenty billion, three hundred one million, two hundred twenty-three thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 13 14 16 17 26 28 32 34 52 56 64 68 91 104 112 119 136 182 208 221 224 238 272 364 416 442 448 476 544 728 832 884 952 1088 1456 1547 1768 1904 2912 3094 3536 3808 5824 6188 7072 7616 12376 14144 24752 49504 99008 12325279 24650558 49301116 86276953 98602232 160228627 172553906 197204464 209529743 320457254 345107812 394408928 419059486 640914508 690215624 788817856 838118972 1121600389 1281829016 1380431248 1466708201 1676237944 2243200778 2563658032 2723886659 2760862496 2933416402 3352475888 4486401556 5127316064 5447773318 5521724992 5866832804 6704951776 8972803112 10254632128 10895546636 11733665608 13409903552 17945606224 19067206613 21791093272 23467331216 35891212448 38134413226 43582186544 46934662432 71782424896 76268826452 87164373088 93869324864 152537652904 174328746176 305075305808 610150611616 1220301223232