322221030997 has 2 divisors, whose sum is σ = 322221030998. Its totient is φ = 322221030996.

The previous prime is 322221030991. The next prime is 322221031009. The reversal of 322221030997 is 799030122223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320181695716 + 2039335281 = 565846^2 + 45159^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-322221030997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322221030991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161110515498 + 161110515499.

It is an arithmetic number, because the mean of its divisors is an integer number (161110515499).

Almost surely, 2^322221030997 is an apocalyptic number.

It is an amenable number.

322221030997 is a deficient number, since it is larger than the sum of its proper divisors (1).

322221030997 is an equidigital number, since it uses as much as digits as its factorization.

322221030997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 322221030997 in words is "three hundred twenty-two billion, two hundred twenty-one million, thirty thousand, nine hundred ninety-seven".