22199929 has 2 divisors, whose sum is σ = 22199930. Its totient is φ = 22199928.

The previous prime is 22199887. The next prime is 22199939. The reversal of 22199929 is 92999122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20457529 + 1742400 = 4523^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 22199929 - 2¹³ = 22191737 is a prime.

It is not a weakly prime, because it can be changed into another prime (22199939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11099964 + 11099965.

It is an arithmetic number, because the mean of its divisors is an integer number (11099965).

Almost surely, 2^22199929 is an apocalyptic number.

It is an amenable number.

22199929 is a deficient number, since it is larger than the sum of its proper divisors (1).

22199929 is an equidigital number, since it uses as much as digits as its factorization.

22199929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 43.

The square root of 22199929 is about 4711.6800612945. The cubic root of 22199929 is about 281.0501761524.

The spelling of 22199929 in words is "twenty-two million, one hundred ninety-nine thousand, nine hundred twenty-nine".