21112133111202 has 32 divisors (see below), whose sum is σ = 48259570867200. Its totient is φ = 6031629705168.

The previous prime is 21112133111197. The next prime is 21112133111243. The reversal of 21112133111202 is 20211133121112.

It is a super-2 number, since 2×21112133111202² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 16385502 + ... + 17626937.

It is an arithmetic number, because the mean of its divisors is an integer number (1508111589600).

Almost surely, 2^{21112133111202} is an apocalyptic number.

21112133111202 is an abundant number, since it is smaller than the sum of its proper divisors (27147437755998).

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

21112133111202 is a wasteful number, since it uses less digits than its factorization.

21112133111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34027230.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 21112133111202 its reverse (20211133121112), we get a palindrome (41323266232314).

The spelling of 21112133111202 in words is "twenty-one trillion, one hundred twelve billion, one hundred thirty-three million, one hundred eleven thousand, two hundred two".