102202020122 has 4 divisors (see below), whose sum is σ = 153303030186. Its totient is φ = 51101010060.

The previous prime is 102202020073. The next prime is 102202020127. The reversal of 102202020122 is 221020202201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 63286961761 + 38915058361 = 251569^2 + 197269^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102202020097 and 102202020106.

It is not an unprimeable number, because it can be changed into a prime (102202020127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25550505029 + ... + 25550505032.

Almost surely, 2^102202020122 is an apocalyptic number.

102202020122 is a deficient number, since it is larger than the sum of its proper divisors (51101010064).

102202020122 is an equidigital number, since it uses as much as digits as its factorization.

102202020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51101010063.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 102202020122 its reverse (221020202201), we get a palindrome (323222222323).

The spelling of 102202020122 in words is "one hundred two billion, two hundred two million, twenty thousand, one hundred twenty-two".