122202139 has 2 divisors, whose sum is σ = 122202140. Its totient is φ = 122202138.

The previous prime is 122202133. The next prime is 122202149. The reversal of 122202139 is 931202221.

It is a weak prime.

It is an emirp because it is prime and its reverse (931202221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122202139 - 2³ = 122202131 is a prime.

It is not a weakly prime, because it can be changed into another prime (122202131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61101069 + 61101070.

It is an arithmetic number, because the mean of its divisors is an integer number (61101070).

Almost surely, 2^122202139 is an apocalyptic number.

122202139 is a deficient number, since it is larger than the sum of its proper divisors (1).

122202139 is an equidigital number, since it uses as much as digits as its factorization.

122202139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 122202139 is about 11054.5076326357. The cubic root of 122202139 is about 496.2413343325.

The spelling of 122202139 in words is "one hundred twenty-two million, two hundred two thousand, one hundred thirty-nine".