13131120222 has 32 divisors (see below), whose sum is σ = 31833020160. Its totient is φ = 3979127160.

The previous prime is 13131120209. The next prime is 13131120281. The reversal of 13131120222 is 22202113131.

13131120222 is a `hidden beast` number, since 131 + 311 + 2 + 0 + 222 = 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 = 13131120195 and 13131120204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11052538 + ... + 11053725.

It is an arithmetic number, because the mean of its divisors is an integer number (994781880).

Almost surely, 2^13131120222 is an apocalyptic number.

13131120222 is an abundant number, since it is smaller than the sum of its proper divisors (18701899938).

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

13131120222 is a wasteful number, since it uses less digits than its factorization.

13131120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22106285 (or 22106279 counting only the distinct ones).

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

Adding to 13131120222 its reverse (22202113131), we get a palindrome (35333233353).

The spelling of 13131120222 in words is "thirteen billion, one hundred thirty-one million, one hundred twenty thousand, two hundred twenty-two".