13123022122 has 12 divisors (see below), whose sum is σ = 22898334690. Its totient is φ = 5624152296.

The previous prime is 13123022111. The next prime is 13123022179. The reversal of 13123022122 is 22122032131.

It can be written as a sum of positive squares in only one way, i.e., 12998052081 + 124970041 = 114009^2 + 11179^2 .

It is a super-2 number, since 2×13123022122² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13123022122.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66954097 + ... + 66954292.

Almost surely, 2^13123022122 is an apocalyptic number.

13123022122 is a deficient number, since it is larger than the sum of its proper divisors (9775312568).

13123022122 is a wasteful number, since it uses less digits than its factorization.

13123022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133908405 (or 133908398 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13123022122 its reverse (22122032131), we get a palindrome (35245054253).

The spelling of 13123022122 in words is "thirteen billion, one hundred twenty-three million, twenty-two thousand, one hundred twenty-two".