22207399 has 2 divisors, whose sum is σ = 22207400. Its totient is φ = 22207398.

The previous prime is 22207391. The next prime is 22207411. The reversal of 22207399 is 99370222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22207399 - 2³ = 22207391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22207391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11103699 + 11103700.

It is an arithmetic number, because the mean of its divisors is an integer number (11103700).

Almost surely, 2^22207399 is an apocalyptic number.

22207399 is a deficient number, since it is larger than the sum of its proper divisors (1).

22207399 is an equidigital number, since it uses as much as digits as its factorization.

22207399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 22207399 is about 4712.4727054912. The cubic root of 22207399 is about 281.0816959135.

The spelling of 22207399 in words is "twenty-two million, two hundred seven thousand, three hundred ninety-nine".