102111221122122 has 64 divisors (see below), whose sum is σ = 212903648294400. Its totient is φ = 32608682554560.

The previous prime is 102111221122039. The next prime is 102111221122181. The reversal of 102111221122122 is 221221122111201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42039097 + ... + 44401667.

It is an arithmetic number, because the mean of its divisors is an integer number (3326619504600).

Almost surely, 2^{102111221122122} is an apocalyptic number.

102111221122122 is an abundant number, since it is smaller than the sum of its proper divisors (110792427172278).

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

102111221122122 is a wasteful number, since it uses less digits than its factorization.

102111221122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364531.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 102111221122122 its reverse (221221122111201), we get a palindrome (323332343233323).

The spelling of 102111221122122 in words is "one hundred two trillion, one hundred eleven billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-two".