20002120211112 has 64 divisors (see below), whose sum is σ = 57019618716480. Its totient is φ = 5792469199872.

The previous prime is 20002120211093. The next prime is 20002120211113. The reversal of 20002120211112 is 21111202120002.

It is a junction number, because it is equal to n+sod(n) for n = 20002120211091 and 20002120211100.

It is not an unprimeable number, because it can be changed into a prime (20002120211113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1885564098 + ... + 1885574705.

It is an arithmetic number, because the mean of its divisors is an integer number (890931542445).

Almost surely, 2^{20002120211112} is an apocalyptic number.

It is an amenable number.

20002120211112 is an abundant number, since it is smaller than the sum of its proper divisors (37017498505368).

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

20002120211112 is a wasteful number, since it uses less digits than its factorization.

20002120211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771138842 (or 3771138838 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20002120211112 its reverse (21111202120002), we get a palindrome (41113322331114).

The spelling of 20002120211112 in words is "twenty trillion, two billion, one hundred twenty million, two hundred eleven thousand, one hundred twelve".