1222392971 has 2 divisors, whose sum is σ = 1222392972. Its totient is φ = 1222392970.

The previous prime is 1222392959. The next prime is 1222393019. The reversal of 1222392971 is 1792932221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222392971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222395971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611196485 + 611196486.

It is an arithmetic number, because the mean of its divisors is an integer number (611196486).

Almost surely, 2^1222392971 is an apocalyptic number.

1222392971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222392971 is an equidigital number, since it uses as much as digits as its factorization.

1222392971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 38.

The square root of 1222392971 is about 34962.7368922972. The cubic root of 1222392971 is about 1069.2278970044.

The spelling of 1222392971 in words is "one billion, two hundred twenty-two million, three hundred ninety-two thousand, nine hundred seventy-one".