20322199 has 2 divisors, whose sum is σ = 20322200. Its totient is φ = 20322198.

The previous prime is 20322193. The next prime is 20322227. The reversal of 20322199 is 99122302.

It is an a-pointer prime, because the next prime (20322227) can be obtained adding 20322199 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20322199 - 2⁹ = 20321687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20322193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161099 + 10161100.

It is an arithmetic number, because the mean of its divisors is an integer number (10161100).

Almost surely, 2^20322199 is an apocalyptic number.

20322199 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322199 is an equidigital number, since it uses as much as digits as its factorization.

20322199 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 28.

The square root of 20322199 is about 4508.0149733558. The cubic root of 20322199 is about 272.8916412174.

The spelling of 20322199 in words is "twenty million, three hundred twenty-two thousand, one hundred ninety-nine".