22729199 has 2 divisors, whose sum is σ = 22729200. Its totient is φ = 22729198.

The previous prime is 22729193. The next prime is 22729237. The reversal of 22729199 is 99192722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22729199 - 2¹² = 22725103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22729193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11364599 + 11364600.

It is an arithmetic number, because the mean of its divisors is an integer number (11364600).

Almost surely, 2^22729199 is an apocalyptic number.

22729199 is a deficient number, since it is larger than the sum of its proper divisors (1).

22729199 is an equidigital number, since it uses as much as digits as its factorization.

22729199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 41.

The square root of 22729199 is about 4767.5149711354. The cubic root of 22729199 is about 283.2661698550.

The spelling of 22729199 in words is "twenty-two million, seven hundred twenty-nine thousand, one hundred ninety-nine".