31222230332 has 12 divisors (see below), whose sum is σ = 54816882120. Its totient is φ = 15560264016.

The previous prime is 31222230329. The next prime is 31222230337. The reversal of 31222230332 is 23303222213.

It is a junction number, because it is equal to n+sod(n) for n = 31222230298 and 31222230307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31222230337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12711407 + ... + 12713862.

It is an arithmetic number, because the mean of its divisors is an integer number (4568073510).

Almost surely, 2^31222230332 is an apocalyptic number.

It is an amenable number.

31222230332 is a deficient number, since it is larger than the sum of its proper divisors (23594651788).

31222230332 is a wasteful number, since it uses less digits than its factorization.

31222230332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25425580 (or 25425578 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 31222230332 its reverse (23303222213), we get a palindrome (54525452545).

The spelling of 31222230332 in words is "thirty-one billion, two hundred twenty-two million, two hundred thirty thousand, three hundred thirty-two".