102001012122 has 64 divisors (see below), whose sum is σ = 218278093824. Its totient is φ = 31706104320.

The previous prime is 102001012103. The next prime is 102001012301. The reversal of 102001012122 is 221210100201.

It is a junction number, because it is equal to n+sod(n) for n = 102001012098 and 102001012107.

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, 839997 + ... + 953727.

It is an arithmetic number, because the mean of its divisors is an integer number (3410595216).

Almost surely, 2^102001012122 is an apocalyptic number.

102001012122 is an abundant number, since it is smaller than the sum of its proper divisors (116277081702).

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

102001012122 is a wasteful number, since it uses less digits than its factorization.

102001012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113923.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102001012122 its reverse (221210100201), we get a palindrome (323211112323).

The spelling of 102001012122 in words is "one hundred two billion, one million, twelve thousand, one hundred twenty-two".