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202021122312130 = 251129631100363717
BaseRepresentation
bin101101111011110010110101…
…001110111000011111000010
3222111022000211100211112121011
4231323302311032320133002
5202434403224302442010
61553355120010551134
760360354511441522
oct5573626516703702
9874260740745534
10202021122312130
1159408749957940
121a7a90691384aa
1388956828914a4
1437c5c35865682
1518550765c9a8a
hexb7bcb53b87c2

202021122312130 has 64 divisors (see below), whose sum is σ = 411025556148480. Its totient is φ = 70816638009600.

The previous prime is 202021122312109. The next prime is 202021122312151. The reversal of 202021122312130 is 31213221120202.

It is an interprime number because it is at equal distance from previous prime (202021122312109) and next prime (202021122312151).

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 48168969 + ... + 52194748.

It is an arithmetic number, because the mean of its divisors is an integer number (6422274314820).

Almost surely, 2202021122312130 is an apocalyptic number.

202021122312130 is an abundant number, since it is smaller than the sum of its proper divisors (209004433836350).

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

202021122312130 is a wasteful number, since it uses less digits than its factorization.

202021122312130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100364395.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 202021122312130 its reverse (31213221120202), we get a palindrome (233234343432332).

The spelling of 202021122312130 in words is "two hundred two trillion, twenty-one billion, one hundred twenty-two million, three hundred twelve thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 29 55 58 110 145 290 319 631 638 1262 1595 3155 3190 6310 6941 13882 18299 34705 36598 69410 91495 182990 201289 402578 1006445 2012890 100363717 200727434 501818585 1003637170 1104000887 2208001774 2910547793 5520004435 5821095586 11040008870 14552738965 29105477930 32016025723 63329505427 64032051446 126659010854 160080128615 316647527135 320160257230 633295054270 696624559697 1393249119394 1836555657383 3483122798485 3673111314766 6966245596970 9182778286915 18365556573830 20202112231213 40404224462426 101010561156065 202021122312130