13220131122 has 48 divisors (see below), whose sum is σ = 32291612640. Its totient is φ = 4006098360.

The previous prime is 13220131109. The next prime is 13220131147. The reversal of 13220131122 is 22113102231.

13220131122 is a `hidden beast` number, since 132 + 201 + 311 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13220131095 and 13220131104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1005108 + ... + 1018175.

It is an arithmetic number, because the mean of its divisors is an integer number (672741930).

Almost surely, 2^13220131122 is an apocalyptic number.

13220131122 is an abundant number, since it is smaller than the sum of its proper divisors (19071481518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13220131122 is a wasteful number, since it uses less digits than its factorization.

13220131122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023316 (or 2023299 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13220131122 its reverse (22113102231), we get a palindrome (35333233353).

The spelling of 13220131122 in words is "thirteen billion, two hundred twenty million, one hundred thirty-one thousand, one hundred twenty-two".