102001111121022 has 24 divisors (see below), whose sum is σ = 205926603549576. Its totient is φ = 33682609880208.

The previous prime is 102001111120921. The next prime is 102001111121023. The reversal of 102001111121022 is 220121111100201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102001111120992 and 102001111121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001111121023) 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, 742362313 + ... + 742499700.

It is an arithmetic number, because the mean of its divisors is an integer number (8580275147899).

Almost surely, 2^{102001111121022} is an apocalyptic number.

102001111121022 is an abundant number, since it is smaller than the sum of its proper divisors (103925492428554).

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

102001111121022 is a wasteful number, since it uses less digits than its factorization.

102001111121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484862232 (or 1484862125 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102001111121022 its reverse (220121111100201), we get a palindrome (322122222221223).

The spelling of 102001111121022 in words is "one hundred two trillion, one billion, one hundred eleven million, one hundred twenty-one thousand, twenty-two".