10001321122 has 24 divisors (see below), whose sum is σ = 16693994268. Its totient is φ = 4467080160.

The previous prime is 10001321117. The next prime is 10001321159. The reversal of 10001321122 is 22112310001.

It can be written as a sum of positive squares in 2 ways, for example, as 9846791361 + 154529761 = 99231^2 + 12431^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175153 + ... + 225124.

Almost surely, 2^10001321122 is an apocalyptic number.

10001321122 is a deficient number, since it is larger than the sum of its proper divisors (6692673146).

10001321122 is a wasteful number, since it uses less digits than its factorization.

10001321122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400354 (or 400323 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10001321122 its reverse (22112310001), we get a palindrome (32113631123).

The spelling of 10001321122 in words is "ten billion, one million, three hundred twenty-one thousand, one hundred twenty-two".