31222101113 has 12 divisors (see below), whose sum is σ = 36831134592. Its totient is φ = 26384871240.

The previous prime is 31222101109. The next prime is 31222101121. The reversal of 31222101113 is 31110122213.

It is not a de Polignac number, because 31222101113 - 2² = 31222101109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31222101091 and 31222101100.

It is not an unprimeable number, because it can be changed into a prime (31222101173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4483745 + ... + 4490702.

It is an arithmetic number, because the mean of its divisors is an integer number (3069261216).

Almost surely, 2^31222101113 is an apocalyptic number.

It is an amenable number.

31222101113 is a deficient number, since it is larger than the sum of its proper divisors (5609033479).

31222101113 is an equidigital number, since it uses as much as digits as its factorization.

31222101113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8974532 (or 8974525 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31222101113 its reverse (31110122213), we get a palindrome (62332223326).

The spelling of 31222101113 in words is "thirty-one billion, two hundred twenty-two million, one hundred one thousand, one hundred thirteen".