21112112020022 has 48 divisors (see below), whose sum is σ = 33521210644320. Its totient is φ = 9970424424576.

The previous prime is 21112112019997. The next prime is 21112112020037. The reversal of 21112112020022 is 22002021121112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71132543 + ... + 71428725.

It is an arithmetic number, because the mean of its divisors is an integer number (698358555090).

Almost surely, 2^{21112112020022} is an apocalyptic number.

21112112020022 is a deficient number, since it is larger than the sum of its proper divisors (12409098624298).

21112112020022 is a wasteful number, since it uses less digits than its factorization.

21112112020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297077 (or 297054 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21112112020022 its reverse (22002021121112), we get a palindrome (43114133141134).

The spelling of 21112112020022 in words is "twenty-one trillion, one hundred twelve billion, one hundred twelve million, twenty thousand, twenty-two".