20211111202112 has 56 divisors (see below), whose sum is σ = 42219531654240. Its totient is φ = 9573175503360.

The previous prime is 20211111202111. The next prime is 20211111202127. The reversal of 20211111202112 is 21120211111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211111202111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22960187 + ... + 23824197.

Almost surely, 2^{20211111202112} is an apocalyptic number.

It is an amenable number.

20211111202112 is an abundant number, since it is smaller than the sum of its proper divisors (22008420452128).

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

20211111202112 is a wasteful number, since it uses less digits than its factorization.

20211111202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883279 (or 883269 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 20211111202112 its reverse (21120211111202), we get a palindrome (41331322313314).

It can be divided in two parts, 2021111 and 1202112, that added together give a palindrome (3223223).

The spelling of 20211111202112 in words is "twenty trillion, two hundred eleven billion, one hundred eleven million, two hundred two thousand, one hundred twelve".