222530131 has 2 divisors, whose sum is σ = 222530132. Its totient is φ = 222530130.

The previous prime is 222530111. The next prime is 222530177. The reversal of 222530131 is 131035222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222530131 - 2⁷ = 222530003 is a prime.

It is a super-2 number, since 2×222530131² = 99039318405754322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222530099 and 222530108.

It is not a weakly prime, because it can be changed into another prime (222530111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111265065 + 111265066.

It is an arithmetic number, because the mean of its divisors is an integer number (111265066).

Almost surely, 2^222530131 is an apocalyptic number.

222530131 is a deficient number, since it is larger than the sum of its proper divisors (1).

222530131 is an equidigital number, since it uses as much as digits as its factorization.

222530131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 222530131 is about 14917.4438493999. The cubic root of 222530131 is about 605.9864888592.

Adding to 222530131 its reverse (131035222), we get a palindrome (353565353).

The spelling of 222530131 in words is "two hundred twenty-two million, five hundred thirty thousand, one hundred thirty-one".