1222013131 has 8 divisors (see below), whose sum is σ = 1231718400. Its totient is φ = 1212340200.

The previous prime is 1222013059. The next prime is 1222013137. The reversal of 1222013131 is 1313102221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222013131 - 2¹⁹ = 1221488843 is a prime.

It is a super-2 number, since 2×1222013131² = 2986632184672846322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222013137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70806 + ... + 86356.

It is an arithmetic number, because the mean of its divisors is an integer number (153964800).

Almost surely, 2^1222013131 is an apocalyptic number.

1222013131 is a deficient number, since it is larger than the sum of its proper divisors (9705269).

1222013131 is a wasteful number, since it uses less digits than its factorization.

1222013131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16169.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1222013131 is about 34957.3044012264. The cubic root of 1222013131 is about 1069.1171367694.

Adding to 1222013131 its reverse (1313102221), we get a palindrome (2535115352).

The spelling of 1222013131 in words is "one billion, two hundred twenty-two million, thirteen thousand, one hundred thirty-one".