222232139 has 2 divisors, whose sum is σ = 222232140. Its totient is φ = 222232138.

The previous prime is 222232117. The next prime is 222232147. The reversal of 222232139 is 931232222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222232139 is a prime.

It is not a weakly prime, because it can be changed into another prime (222232169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111116069 + 111116070.

It is an arithmetic number, because the mean of its divisors is an integer number (111116070).

Almost surely, 2^222232139 is an apocalyptic number.

222232139 is a deficient number, since it is larger than the sum of its proper divisors (1).

222232139 is an equidigital number, since it uses as much as digits as its factorization.

222232139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 26.

The square root of 222232139 is about 14907.4524651263. The cubic root of 222232139 is about 605.7158741339.

The spelling of 222232139 in words is "two hundred twenty-two million, two hundred thirty-two thousand, one hundred thirty-nine".