13131133221222 has 48 divisors (see below), whose sum is σ = 28815708579840. Its totient is φ = 4320921277296.

The previous prime is 13131133221179. The next prime is 13131133221229. The reversal of 13131133221222 is 22212233113131.

13131133221222 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 113 + 322 + 1 + 222 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131133221229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7835293 + ... + 9362375.

It is an arithmetic number, because the mean of its divisors is an integer number (600327262080).

Almost surely, 2^{13131133221222} is an apocalyptic number.

13131133221222 is an abundant number, since it is smaller than the sum of its proper divisors (15684575358618).

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

13131133221222 is a wasteful number, since it uses less digits than its factorization.

13131133221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533217 (or 1533214 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 13131133221222 its reverse (22212233113131), we get a palindrome (35343366334353).

The spelling of 13131133221222 in words is "thirteen trillion, one hundred thirty-one billion, one hundred thirty-three million, two hundred twenty-one thousand, two hundred twenty-two".