99422101 has 2 divisors, whose sum is σ = 99422102. Its totient is φ = 99422100.

The previous prime is 99422087. The next prime is 99422111. The reversal of 99422101 is 10122499.

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., 81018001 + 18404100 = 9001^2 + 4290^2 .

It is an emirp because it is prime and its reverse (10122499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99422101 - 2⁹ = 99421589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99422101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99422111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49711050 + 49711051.

It is an arithmetic number, because the mean of its divisors is an integer number (49711051).

Almost surely, 2^99422101 is an apocalyptic number.

It is an amenable number.

99422101 is a deficient number, since it is larger than the sum of its proper divisors (1).

99422101 is an equidigital number, since it uses as much as digits as its factorization.

99422101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 99422101 is about 9971.0631830312. The cubic root of 99422101 is about 463.2630322520.

The spelling of 99422101 in words is "ninety-nine million, four hundred twenty-two thousand, one hundred one".