31220010112000 has 176 divisors, whose sum is σ = 81273498988032. Its totient is φ = 11945046220800.

The previous prime is 31220010111893. The next prime is 31220010112007. The reversal of 31220010112000 is 21101002213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31220010112007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2358312 + ... + 8246311.

Almost surely, 2^{31220010112000} is an apocalyptic number.

It is an amenable number.

31220010112000 is an abundant number, since it is smaller than the sum of its proper divisors (50053488876032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31220010112000 is a wasteful number, since it uses less digits than its factorization.

31220010112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10604681 (or 10604653 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 31220010112000 its reverse (21101002213), we get a palindrome (31241111114213).

The spelling of 31220010112000 in words is "thirty-one trillion, two hundred twenty billion, ten million, one hundred twelve thousand".