1222022239 has 2 divisors, whose sum is σ = 1222022240. Its totient is φ = 1222022238.

The previous prime is 1222022233. The next prime is 1222022257. The reversal of 1222022239 is 9322202221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222022239 - 2²¹ = 1219925087 is a prime.

It is a super-2 number, since 2×1222022239² = 2986676705221146242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222022233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611011119 + 611011120.

It is an arithmetic number, because the mean of its divisors is an integer number (611011120).

Almost surely, 2^1222022239 is an apocalyptic number.

1222022239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222022239 is an equidigital number, since it uses as much as digits as its factorization.

1222022239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1222022239 is about 34957.4346741863. The cubic root of 1222022239 is about 1069.1197929041.

The spelling of 1222022239 in words is "one billion, two hundred twenty-two million, twenty-two thousand, two hundred thirty-nine".