99422815267801 has 9 divisors (see below), whose sum is σ = 102969707442303. Its totient is φ = 95994163136760.

The previous prime is 99422815267747. The next prime is 99422815267807. The reversal of 99422815267801 is 10876251822499.

The square root of 99422815267801 is 9971099.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 52134912643401 + 47287902624400 = 7220451^2 + 6876620^2 .

It is not a de Polignac number, because 99422815267801 - 2⁹ = 99422815267289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99422815267807) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 288989956 + ... + 289333786.

Almost surely, 2^{99422815267801} is an apocalyptic number.

99422815267801 is the 9971099-th square number.

99422815267801 is the 4985550-th centered octagonal number.

It is an amenable number.

99422815267801 is a deficient number, since it is larger than the sum of its proper divisors (3546892174502).

99422815267801 is an frugal number, since it uses more digits than its factorization.

99422815267801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687720 (or 343860 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 64.

The spelling of 99422815267801 in words is "ninety-nine trillion, four hundred twenty-two billion, eight hundred fifteen million, two hundred sixty-seven thousand, eight hundred one".