102102122122 has 48 divisors (see below), whose sum is σ = 209304279072. Its totient is φ = 36720038880.

The previous prime is 102102122033. The next prime is 102102122147. The reversal of 102102122122 is 221221201201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102102122096 and 102102122105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3628848 + ... + 3656875.

It is an arithmetic number, because the mean of its divisors is an integer number (4360505814).

Almost surely, 2^102102122122 is an apocalyptic number.

102102122122 is an abundant number, since it is smaller than the sum of its proper divisors (107202156950).

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

102102122122 is a wasteful number, since it uses less digits than its factorization.

102102122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7285763 (or 7285756 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102102122122 its reverse (221221201201), we get a palindrome (323323323323).

The spelling of 102102122122 in words is "one hundred two billion, one hundred two million, one hundred twenty-two thousand, one hundred twenty-two".