31222133324 has 12 divisors (see below), whose sum is σ = 55169207184. Its totient is φ = 15459502704.

The previous prime is 31222133303. The next prime is 31222133339. The reversal of 31222133324 is 42333122213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31222133293 and 31222133302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37890527 + ... + 37891350.

It is an arithmetic number, because the mean of its divisors is an integer number (4597433932).

Almost surely, 2^31222133324 is an apocalyptic number.

It is an amenable number.

31222133324 is a deficient number, since it is larger than the sum of its proper divisors (23947073860).

31222133324 is a wasteful number, since it uses less digits than its factorization.

31222133324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75781984 (or 75781982 counting only the distinct ones).

The product of its digits is 5184, while the sum is 26.

Adding to 31222133324 its reverse (42333122213), we get a palindrome (73555255537).

The spelling of 31222133324 in words is "thirty-one billion, two hundred twenty-two million, one hundred thirty-three thousand, three hundred twenty-four".