130222931 has 4 divisors (see below), whose sum is σ = 131686200. Its totient is φ = 128759664.

The previous prime is 130222927. The next prime is 130222957. The reversal of 130222931 is 139222031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130222931 - 2² = 130222927 is a prime.

It is a super-2 number, since 2×130222931² = 33916023516461522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130222897 and 130222906.

It is not an unprimeable number, because it can be changed into a prime (130222921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731501 + ... + 731678.

It is an arithmetic number, because the mean of its divisors is an integer number (32921550).

Almost surely, 2^130222931 is an apocalyptic number.

130222931 is a deficient number, since it is larger than the sum of its proper divisors (1463269).

130222931 is an equidigital number, since it uses as much as digits as its factorization.

130222931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463268.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 130222931 is about 11411.5262344701. The cubic root of 130222931 is about 506.8691065942.

Adding to 130222931 its reverse (139222031), we get a palindrome (269444962).

The spelling of 130222931 in words is "one hundred thirty million, two hundred twenty-two thousand, nine hundred thirty-one".