102121201220022 has 36 divisors (see below), whose sum is σ = 227404296562716. Its totient is φ = 33120389576880.

The previous prime is 102121201219987. The next prime is 102121201220033. The reversal of 102121201220022 is 220022102121201.

It is a happy number.

102121201220022 is a `hidden beast` number, since 10 + 212 + 1 + 201 + 220 + 0 + 22 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 102121201219977 and 102121201220004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2072071804 + ... + 2072121087.

It is an arithmetic number, because the mean of its divisors is an integer number (6316786015631).

Almost surely, 2^{102121201220022} is an apocalyptic number.

102121201220022 is an abundant number, since it is smaller than the sum of its proper divisors (125283095342694).

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

102121201220022 is a wasteful number, since it uses less digits than its factorization.

102121201220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144192973 (or 4144192933 counting only the distinct ones).

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

Adding to 102121201220022 its reverse (220022102121201), we get a palindrome (322143303341223).

The spelling of 102121201220022 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred one million, two hundred twenty thousand, twenty-two".