99022601 has 2 divisors, whose sum is σ = 99022602. Its totient is φ = 99022600.

The previous prime is 99022597. The next prime is 99022607. The reversal of 99022601 is 10622099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98982601 + 40000 = 9949^2 + 200^2 .

It is an emirp because it is prime and its reverse (10622099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99022601 - 2² = 99022597 is a prime.

It is not a weakly prime, because it can be changed into another prime (99022607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49511300 + 49511301.

It is an arithmetic number, because the mean of its divisors is an integer number (49511301).

Almost surely, 2^99022601 is an apocalyptic number.

It is an amenable number.

99022601 is a deficient number, since it is larger than the sum of its proper divisors (1).

99022601 is an equidigital number, since it uses as much as digits as its factorization.

99022601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 99022601 is about 9951.0100492362. The cubic root of 99022601 is about 462.6417015041.

The spelling of 99022601 in words is "ninety-nine million, twenty-two thousand, six hundred one".