22112220012102 has 48 divisors (see below), whose sum is σ = 52499620712448. Its totient is φ = 6670624857840.

The previous prime is 22112220012083. The next prime is 22112220012137. The reversal of 22112220012102 is 20121002221122.

It is a happy number.

22112220012102 is a `hidden beast` number, since 221 + 12 + 220 + 0 + 1 + 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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250354678 + ... + 250442985.

It is an arithmetic number, because the mean of its divisors is an integer number (1093742098176).

Almost surely, 2^{22112220012102} is an apocalyptic number.

22112220012102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22112220012102 is an abundant number, since it is smaller than the sum of its proper divisors (30387400700346).

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

22112220012102 is a wasteful number, since it uses less digits than its factorization.

22112220012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500797905 (or 500797902 counting only the distinct ones).

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

Adding to 22112220012102 its reverse (20121002221122), we get a palindrome (42233222233224).

The spelling of 22112220012102 in words is "twenty-two trillion, one hundred twelve billion, two hundred twenty million, twelve thousand, one hundred two".