22917122 has 24 divisors (see below), whose sum is σ = 37724160. Its totient is φ = 10428480.

The previous prime is 22917121. The next prime is 22917143. The reversal of 22917122 is 22171922.

It is a junction number, because it is equal to n+sod(n) for n = 22917091 and 22917100.

It is not an unprimeable number, because it can be changed into a prime (22917121) 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, 17279 + ... + 18557.

It is an arithmetic number, because the mean of its divisors is an integer number (1571840).

Almost surely, 2^22917122 is an apocalyptic number.

22917122 is a deficient number, since it is larger than the sum of its proper divisors (14807038).

22917122 is a wasteful number, since it uses less digits than its factorization.

22917122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346 (or 1329 counting only the distinct ones).

The product of its digits is 1008, while the sum is 26.

The square root of 22917122 is about 4787.1830965611. The cubic root of 22917122 is about 284.0447013549.

The spelling of 22917122 in words is "twenty-two million, nine hundred seventeen thousand, one hundred twenty-two".