31222232330 has 16 divisors (see below), whose sum is σ = 56380731264. Its totient is φ = 12448734480.

The previous prime is 31222232299. The next prime is 31222232369. The reversal of 31222232330 is 3323222213.

It is a junction number, because it is equal to n+sod(n) for n = 31222232296 and 31222232305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5016542 + ... + 5022761.

It is an arithmetic number, because the mean of its divisors is an integer number (3523795704).

Almost surely, 2^31222232330 is an apocalyptic number.

31222232330 is a deficient number, since it is larger than the sum of its proper divisors (25158498934).

31222232330 is a wasteful number, since it uses less digits than its factorization.

31222232330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10039621.

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

Adding to 31222232330 its reverse (3323222213), we get a palindrome (34545454543).

The spelling of 31222232330 in words is "thirty-one billion, two hundred twenty-two million, two hundred thirty-two thousand, three hundred thirty".