22423122 has 32 divisors (see below), whose sum is σ = 50064960. Its totient is φ = 7439040.

The previous prime is 22423087. The next prime is 22423133. The reversal of 22423122 is 22132422.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22423095 and 22423104.

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 in 15 ways as a sum of consecutive naturals, for example, 12153 + ... + 13875.

It is an arithmetic number, because the mean of its divisors is an integer number (1564530).

Almost surely, 2^22423122 is an apocalyptic number.

22423122 is an abundant number, since it is smaller than the sum of its proper divisors (27641838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22423122 is a wasteful number, since it uses less digits than its factorization.

22423122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975 (or 1969 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 22423122 is about 4735.3059035294. The cubic root of 22423122 is about 281.9889085724.

Adding to 22423122 its reverse (22132422), we get a palindrome (44555544).

The spelling of 22423122 in words is "twenty-two million, four hundred twenty-three thousand, one hundred twenty-two".