31112101222 has 16 divisors (see below), whose sum is σ = 46948133232. Its totient is φ = 15462804960.

The previous prime is 31112101201. The next prime is 31112101249. The reversal of 31112101222 is 22210121113.

It is a junction number, because it is equal to n+sod(n) for n = 31112101196 and 31112101205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792808 + ... + 831124.

It is an arithmetic number, because the mean of its divisors is an integer number (2934258327).

Almost surely, 2^31112101222 is an apocalyptic number.

31112101222 is a deficient number, since it is larger than the sum of its proper divisors (15836032010).

31112101222 is a wasteful number, since it uses less digits than its factorization.

31112101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40743.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 31112101222 its reverse (22210121113), we get a palindrome (53322222335).

The spelling of 31112101222 in words is "thirty-one billion, one hundred twelve million, one hundred one thousand, two hundred twenty-two".