122102222122 has 4 divisors (see below), whose sum is σ = 183153333186. Its totient is φ = 61051111060.

The previous prime is 122102222113. The next prime is 122102222159. The reversal of 122102222122 is 221222201221.

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., 71796666601 + 50305555521 = 267949^2 + 224289^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122102222122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30525555529 + ... + 30525555532.

Almost surely, 2^122102222122 is an apocalyptic number.

122102222122 is a deficient number, since it is larger than the sum of its proper divisors (61051111064).

122102222122 is an equidigital number, since it uses as much as digits as its factorization.

122102222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61051111063.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122102222122 its reverse (221222201221), we get a palindrome (343324423343).

The spelling of 122102222122 in words is "one hundred twenty-two billion, one hundred two million, two hundred twenty-two thousand, one hundred twenty-two".