31100221112 has 16 divisors (see below), whose sum is σ = 58327549200. Its totient is φ = 15546208000.

The previous prime is 31100221091. The next prime is 31100221127. The reversal of 31100221112 is 21112200113.

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 3 ways as a sum of consecutive naturals, for example, 453812 + ... + 517827.

It is an arithmetic number, because the mean of its divisors is an integer number (3645471825).

Almost surely, 2^31100221112 is an apocalyptic number.

It is an amenable number.

31100221112 is a deficient number, since it is larger than the sum of its proper divisors (27227328088).

31100221112 is a wasteful number, since it uses less digits than its factorization.

31100221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975646 (or 975642 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 31100221112 its reverse (21112200113), we get a palindrome (52212421225).

The spelling of 31100221112 in words is "thirty-one billion, one hundred million, two hundred twenty-one thousand, one hundred twelve".