322221139 has 2 divisors, whose sum is σ = 322221140. Its totient is φ = 322221138.

The previous prime is 322221121. The next prime is 322221149. The reversal of 322221139 is 931122223.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 322221139 - 2⁹ = 322220627 is a prime.

It is not a weakly prime, because it can be changed into another prime (322221149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161110569 + 161110570.

It is an arithmetic number, because the mean of its divisors is an integer number (161110570).

Almost surely, 2^322221139 is an apocalyptic number.

322221139 is a deficient number, since it is larger than the sum of its proper divisors (1).

322221139 is an equidigital number, since it uses as much as digits as its factorization.

322221139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 322221139 is about 17950.5191846921. The cubic root of 322221139 is about 685.5692705020.

The spelling of 322221139 in words is "three hundred twenty-two million, two hundred twenty-one thousand, one hundred thirty-nine".