31120222120011 has 48 divisors (see below), whose sum is σ = 47748328467840. Its totient is φ = 19476272724480.

The previous prime is 31120222119991. The next prime is 31120222120061. The reversal of 31120222120011 is 11002122202113.

31120222120011 is a `hidden beast` number, since 31 + 1 + 202 + 221 + 200 + 11 = 666.

It is not a de Polignac number, because 31120222120011 - 2⁵ = 31120222119979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31120222120061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14282875 + ... + 16316891.

It is an arithmetic number, because the mean of its divisors is an integer number (994756843080).

Almost surely, 2^{31120222120011} is an apocalyptic number.

31120222120011 is a deficient number, since it is larger than the sum of its proper divisors (16628106347829).

31120222120011 is a wasteful number, since it uses less digits than its factorization.

31120222120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034856 (or 2034853 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 31120222120011 its reverse (11002122202113), we get a palindrome (42122344322124).

The spelling of 31120222120011 in words is "thirty-one trillion, one hundred twenty billion, two hundred twenty-two million, one hundred twenty thousand, eleven".