102112212121122 has 64 divisors (see below), whose sum is σ = 233469423452160. Its totient is φ = 29166159020544.

The previous prime is 102112212121103. The next prime is 102112212121207. The reversal of 102112212121122 is 221121212211201.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 2228382303 + ... + 2228428125.

It is an arithmetic number, because the mean of its divisors is an integer number (3647959741440).

Almost surely, 2^{102112212121122} is an apocalyptic number.

102112212121122 is an abundant number, since it is smaller than the sum of its proper divisors (131357211331038).

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

102112212121122 is a wasteful number, since it uses less digits than its factorization.

102112212121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60607.

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

Adding to 102112212121122 its reverse (221121212211201), we get a palindrome (323233424332323).

The spelling of 102112212121122 in words is "one hundred two trillion, one hundred twelve billion, two hundred twelve million, one hundred twenty-one thousand, one hundred twenty-two".