99822251 has 2 divisors, whose sum is σ = 99822252. Its totient is φ = 99822250.

The previous prime is 99822227. The next prime is 99822269. The reversal of 99822251 is 15222899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99822251 - 2⁶ = 99822187 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99822851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49911125 + 49911126.

It is an arithmetic number, because the mean of its divisors is an integer number (49911126).

Almost surely, 2^99822251 is an apocalyptic number.

99822251 is a deficient number, since it is larger than the sum of its proper divisors (1).

99822251 is an equidigital number, since it uses as much as digits as its factorization.

99822251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 38.

The square root of 99822251 is about 9991.1085971478. The cubic root of 99822251 is about 463.8837076649.

The spelling of 99822251 in words is "ninety-nine million, eight hundred twenty-two thousand, two hundred fifty-one".