22431222142 has 32 divisors (see below), whose sum is σ = 38607528960. Its totient is φ = 9574960320.

The previous prime is 22431222131. The next prime is 22431222173. The reversal of 22431222142 is 24122213422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3973642 + ... + 3979282.

It is an arithmetic number, because the mean of its divisors is an integer number (1206485280).

Almost surely, 2^22431222142 is an apocalyptic number.

22431222142 is a deficient number, since it is larger than the sum of its proper divisors (16176306818).

22431222142 is a wasteful number, since it uses less digits than its factorization.

22431222142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6736.

The product of its digits is 3072, while the sum is 25.

Adding to 22431222142 its reverse (24122213422), we get a palindrome (46553435564).

The spelling of 22431222142 in words is "twenty-two billion, four hundred thirty-one million, two hundred twenty-two thousand, one hundred forty-two".