21122022120102 has 96 divisors (see below), whose sum is σ = 47047376323584. Its totient is φ = 6844529664000.

The previous prime is 21122022119993. The next prime is 21122022120119. The reversal of 21122022120102 is 20102122022112.

It is a happy number.

21122022120102 is a `hidden beast` number, since 21 + 1 + 220 + 221 + 201 + 0 + 2 = 666.

It is a super-2 number, since 2×21122022120102² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 628596102 + ... + 628629702.

It is an arithmetic number, because the mean of its divisors is an integer number (490076836704).

Almost surely, 2^{21122022120102} is an apocalyptic number.

21122022120102 is an abundant number, since it is smaller than the sum of its proper divisors (25925354203482).

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

21122022120102 is a wasteful number, since it uses less digits than its factorization.

21122022120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36654 (or 36651 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 21122022120102 its reverse (20102122022112), we get a palindrome (41224144142214).

The spelling of 21122022120102 in words is "twenty-one trillion, one hundred twenty-two billion, twenty-two million, one hundred twenty thousand, one hundred two".