22431122 has 24 divisors (see below), whose sum is σ = 40057776. Its totient is φ = 9388008.

The previous prime is 22431113. The next prime is 22431127. The reversal of 22431122 is 22113422.

It is a self number, because there is not a number n which added to its sum of digits gives 22431122.

It is not an unprimeable number, because it can be changed into a prime (22431127) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1553 + ... + 6875.

It is an arithmetic number, because the mean of its divisors is an integer number (1669074).

Almost surely, 2^22431122 is an apocalyptic number.

22431122 is a deficient number, since it is larger than the sum of its proper divisors (17626654).

22431122 is a wasteful number, since it uses less digits than its factorization.

22431122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5382 (or 5375 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 22431122 is about 4736.1505465937. The cubic root of 22431122 is about 282.0224400767.

Adding to 22431122 its reverse (22113422), we get a palindrome (44544544).

It can be divided in two parts, 2243 and 1122, that multiplied together give a triangular number (2516646 = T₂₂₄₃).

The spelling of 22431122 in words is "twenty-two million, four hundred thirty-one thousand, one hundred twenty-two".