100322202397721 has 2 divisors, whose sum is σ = 100322202397722. Its totient is φ = 100322202397720.

The previous prime is 100322202397661. The next prime is 100322202397759. The reversal of 100322202397721 is 127793202223001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53252119734025 + 47070082663696 = 7297405^2 + 6860764^2 .

It is a cyclic number.

It is not a de Polignac number, because 100322202397721 - 2¹⁴ = 100322202381337 is a prime.

It is a super-2 number, since 2×100322202397721² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100322202397771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50161101198860 + 50161101198861.

It is an arithmetic number, because the mean of its divisors is an integer number (50161101198861).

Almost surely, 2^{100322202397721} is an apocalyptic number.

It is an amenable number.

100322202397721 is a deficient number, since it is larger than the sum of its proper divisors (1).

100322202397721 is an equidigital number, since it uses as much as digits as its factorization.

100322202397721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 100322202397721 in words is "one hundred trillion, three hundred twenty-two billion, two hundred two million, three hundred ninety-seven thousand, seven hundred twenty-one".