22121210022102 has 24 divisors (see below), whose sum is σ = 48295160816760. Its totient is φ = 7317448607040.

The previous prime is 22121210022101. The next prime is 22121210022113. The reversal of 22121210022102 is 20122001212122.

It is a happy number.

22121210022102 is a `hidden beast` number, since 221 + 21 + 210 + 0 + 2 + 210 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121210022101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4690669827 + ... + 4690674542.

It is an arithmetic number, because the mean of its divisors is an integer number (2012298367365).

Almost surely, 2^{22121210022102} is an apocalyptic number.

22121210022102 is an abundant number, since it is smaller than the sum of its proper divisors (26173950794658).

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

22121210022102 is a wasteful number, since it uses less digits than its factorization.

22121210022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9381344508 (or 9381344505 counting only the distinct ones).

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

Adding to 22121210022102 its reverse (20122001212122), we get a palindrome (42243211234224).

The spelling of 22121210022102 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred ten million, twenty-two thousand, one hundred two".