202112112121232 has 40 divisors (see below), whose sum is σ = 412203444106560. Its totient is φ = 95737058421120.

The previous prime is 202112112121187. The next prime is 202112112121253. The reversal of 202112112121232 is 232121211211202.

It is a super-2 number, since 2×202112112121232² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202112112121198 and 202112112121207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159131933 + ... + 160396995.

It is an arithmetic number, because the mean of its divisors is an integer number (10305086102664).

Almost surely, 2^{202112112121232} is an apocalyptic number.

It is an amenable number.

202112112121232 is an abundant number, since it is smaller than the sum of its proper divisors (210091331985328).

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

202112112121232 is a wasteful number, since it uses less digits than its factorization.

202112112121232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790631 (or 1790625 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 202112112121232 its reverse (232121211211202), we get a palindrome (434233323332434).

The spelling of 202112112121232 in words is "two hundred two trillion, one hundred twelve billion, one hundred twelve million, one hundred twenty-one thousand, two hundred thirty-two".