122431212122 has 4 divisors (see below), whose sum is σ = 183646818186. Its totient is φ = 61215606060.

The previous prime is 122431212107. The next prime is 122431212131. The reversal of 122431212122 is 221212134221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221212134221 = 13 ⋅17016318017.

It can be written as a sum of positive squares in only one way, i.e., 114547725601 + 7883486521 = 338449^2 + 88789^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30607803029 + ... + 30607803032.

Almost surely, 2^122431212122 is an apocalyptic number.

122431212122 is a deficient number, since it is larger than the sum of its proper divisors (61215606064).

122431212122 is an equidigital number, since it uses as much as digits as its factorization.

122431212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61215606063.

The product of its digits is 768, while the sum is 23.

Adding to 122431212122 its reverse (221212134221), we get a palindrome (343643346343).

The spelling of 122431212122 in words is "one hundred twenty-two billion, four hundred thirty-one million, two hundred twelve thousand, one hundred twenty-two".