31230112222 has 16 divisors (see below), whose sum is σ = 46901913552. Its totient is φ = 15596156160.

The previous prime is 31230112217. The next prime is 31230112237. The reversal of 31230112222 is 22221103213.

It is a self number, because there is not a number n which added to its sum of digits gives 31230112222.

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, 11140273 + ... + 11143075.

It is an arithmetic number, because the mean of its divisors is an integer number (2931369597).

Almost surely, 2^31230112222 is an apocalyptic number.

31230112222 is a deficient number, since it is larger than the sum of its proper divisors (15671801330).

31230112222 is a wasteful number, since it uses less digits than its factorization.

31230112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7563.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31230112222 its reverse (22221103213), we get a palindrome (53451215435).

Subtracting from 31230112222 its reverse (22221103213), we obtain a palindrome (9009009009).

The spelling of 31230112222 in words is "thirty-one billion, two hundred thirty million, one hundred twelve thousand, two hundred twenty-two".