20322299 has 2 divisors, whose sum is σ = 20322300. Its totient is φ = 20322298.

The previous prime is 20322257. The next prime is 20322307. The reversal of 20322299 is 99222302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20322299 - 2¹² = 20318203 is a prime.

It is not a weakly prime, because it can be changed into another prime (20322199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161149 + 10161150.

It is an arithmetic number, because the mean of its divisors is an integer number (10161150).

Almost surely, 2^20322299 is an apocalyptic number.

20322299 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322299 is an equidigital number, since it uses as much as digits as its factorization.

20322299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 20322299 is about 4508.0260646984. The cubic root of 20322299 is about 272.8920888251.

The spelling of 20322299 in words is "twenty million, three hundred twenty-two thousand, two hundred ninety-nine".