1222324231291 has 2 divisors, whose sum is σ = 1222324231292. Its totient is φ = 1222324231290.

The previous prime is 1222324231283. The next prime is 1222324231417. The reversal of 1222324231291 is 1921324232221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222324231291 - 2³ = 1222324231283 is a prime.

It is a super-2 number, since 2×1222324231291² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1222324211291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611162115645 + 611162115646.

It is an arithmetic number, because the mean of its divisors is an integer number (611162115646).

Almost surely, 2^{1222324231291} is an apocalyptic number.

1222324231291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222324231291 is an equidigital number, since it uses as much as digits as its factorization.

1222324231291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The spelling of 1222324231291 in words is "one trillion, two hundred twenty-two billion, three hundred twenty-four million, two hundred thirty-one thousand, two hundred ninety-one".