31330220222 has 16 divisors (see below), whose sum is σ = 53823968640. Its totient is φ = 13398482328.

The previous prime is 31330220219. The next prime is 31330220231. The reversal of 31330220222 is 22202203313.

It is a junction number, because it is equal to n+sod(n) for n = 31330220194 and 31330220203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2389472 + ... + 2402547.

It is an arithmetic number, because the mean of its divisors is an integer number (3363998040).

Almost surely, 2^31330220222 is an apocalyptic number.

31330220222 is a deficient number, since it is larger than the sum of its proper divisors (22493748418).

31330220222 is a wasteful number, since it uses less digits than its factorization.

31330220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4792495.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31330220222 its reverse (22202203313), we get a palindrome (53532423535).

The spelling of 31330220222 in words is "thirty-one billion, three hundred thirty million, two hundred twenty thousand, two hundred twenty-two".