22222199 has 2 divisors, whose sum is σ = 22222200. Its totient is φ = 22222198.

The previous prime is 22222129. The next prime is 22222223. The reversal of 22222199 is 99122222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22222199 - 2¹⁶ = 22156663 is a prime.

It is a super-2 number, since 2×22222199² = 987652256791202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22222129) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111099 + 11111100.

It is an arithmetic number, because the mean of its divisors is an integer number (11111100).

Almost surely, 2^22222199 is an apocalyptic number.

22222199 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222199 is an equidigital number, since it uses as much as digits as its factorization.

22222199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 22222199 is about 4714.0427448211. The cubic root of 22222199 is about 281.1441238353.

The spelling of 22222199 in words is "twenty-two million, two hundred twenty-two thousand, one hundred ninety-nine".