13120220322 has 64 divisors (see below), whose sum is σ = 33677596800. Its totient is φ = 3741949440.

The previous prime is 13120220279. The next prime is 13120220357. The reversal of 13120220322 is 22302202131.

13120220322 is a `hidden beast` number, since 1 + 3 + 120 + 220 + 322 = 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 = 13120220295 and 13120220304.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 639547 + ... + 659742.

It is an arithmetic number, because the mean of its divisors is an integer number (526212450).

Almost surely, 2^13120220322 is an apocalyptic number.

13120220322 is an abundant number, since it is smaller than the sum of its proper divisors (20557376478).

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

13120220322 is a wasteful number, since it uses less digits than its factorization.

13120220322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299328 (or 1299322 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13120220322 its reverse (22302202131), we get a palindrome (35422422453).

The spelling of 13120220322 in words is "thirteen billion, one hundred twenty million, two hundred twenty thousand, three hundred twenty-two".