31233221422 has 16 divisors (see below), whose sum is σ = 51527149632. Its totient is φ = 14108623200.

The previous prime is 31233221419. The next prime is 31233221429. The reversal of 31233221422 is 22412233213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233221429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12778329 + ... + 12780772.

It is an arithmetic number, because the mean of its divisors is an integer number (3220446852).

Almost surely, 2^31233221422 is an apocalyptic number.

31233221422 is a deficient number, since it is larger than the sum of its proper divisors (20293928210).

31233221422 is a wasteful number, since it uses less digits than its factorization.

31233221422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25559163.

The product of its digits is 3456, while the sum is 25.

Adding to 31233221422 its reverse (22412233213), we get a palindrome (53645454635).

The spelling of 31233221422 in words is "thirty-one billion, two hundred thirty-three million, two hundred twenty-one thousand, four hundred twenty-two".