102100220320122 has 80 divisors (see below), whose sum is σ = 236883673635840. Its totient is φ = 32830048022688.

The previous prime is 102100220320117. The next prime is 102100220320177. The reversal of 102100220320122 is 221023022001201.

102100220320122 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 0 + 0 + 220 + 320 + 122 = 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 = 102100220320095 and 102100220320104.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4669738 + ... + 15033525.

It is an arithmetic number, because the mean of its divisors is an integer number (2961045920448).

Almost surely, 2^{102100220320122} is an apocalyptic number.

102100220320122 is an abundant number, since it is smaller than the sum of its proper divisors (134783453315718).

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

102100220320122 is a wasteful number, since it uses less digits than its factorization.

102100220320122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19704409 (or 19704400 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 102100220320122 its reverse (221023022001201), we get a palindrome (323123242321323).

The spelling of 102100220320122 in words is "one hundred two trillion, one hundred billion, two hundred twenty million, three hundred twenty thousand, one hundred twenty-two".