22129317 has 12 divisors (see below), whose sum is σ = 36531040. Its totient is φ = 12645288.

The previous prime is 22129309. The next prime is 22129333. The reversal of 22129317 is 71392122.

It is not a de Polignac number, because 22129317 - 2³ = 22129309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22129417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175567 + ... + 175692.

Almost surely, 2^22129317 is an apocalyptic number.

It is an amenable number.

22129317 is a deficient number, since it is larger than the sum of its proper divisors (14401723).

22129317 is a wasteful number, since it uses less digits than its factorization.

22129317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351272 (or 351269 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 22129317 is about 4704.1808000969. The cubic root of 22129317 is about 280.7518780004.

The spelling of 22129317 in words is "twenty-two million, one hundred twenty-nine thousand, three hundred seventeen".