322216100491 has 2 divisors, whose sum is σ = 322216100492. Its totient is φ = 322216100490.

The previous prime is 322216100441. The next prime is 322216100497. The reversal of 322216100491 is 194001612223.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 322216100491 - 2³¹ = 320068616843 is a prime.

It is not a weakly prime, because it can be changed into another prime (322216100497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161108050245 + 161108050246.

It is an arithmetic number, because the mean of its divisors is an integer number (161108050246).

Almost surely, 2^322216100491 is an apocalyptic number.

322216100491 is a deficient number, since it is larger than the sum of its proper divisors (1).

322216100491 is an equidigital number, since it uses as much as digits as its factorization.

322216100491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 322216100491 in words is "three hundred twenty-two billion, two hundred sixteen million, one hundred thousand, four hundred ninety-one".