22817122 has 4 divisors (see below), whose sum is σ = 34225686. Its totient is φ = 11408560.

The previous prime is 22817117. The next prime is 22817149. The reversal of 22817122 is 22171822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18326961 + 4490161 = 4281^2 + 2119^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5704279 + ... + 5704282.

Almost surely, 2^22817122 is an apocalyptic number.

22817122 is a deficient number, since it is larger than the sum of its proper divisors (11408564).

22817122 is a wasteful number, since it uses less digits than its factorization.

22817122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11408563.

The product of its digits is 896, while the sum is 25.

The square root of 22817122 is about 4776.7271222041. The cubic root of 22817122 is about 283.6309512433.

Adding to 22817122 its reverse (22171822), we get a palindrome (44988944).

The spelling of 22817122 in words is "twenty-two million, eight hundred seventeen thousand, one hundred twenty-two".