21113022031112 has 64 divisors (see below), whose sum is σ = 45505192219200. Its totient is φ = 9082425507840.

The previous prime is 21113022031067. The next prime is 21113022031117.

21113022031112 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (21113022031117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4828793 + ... + 8095880.

It is an arithmetic number, because the mean of its divisors is an integer number (711018628425).

Almost surely, 2^{21113022031112} is an apocalyptic number.

21113022031112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21113022031112 is an abundant number, since it is smaller than the sum of its proper divisors (24392170188088).

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

21113022031112 is a wasteful number, since it uses less digits than its factorization.

21113022031112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12925686 (or 12925682 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

It can be divided in two parts, 2111302 and 2031112, that added together give a palindrome (4142414).

The spelling of 21113022031112 in words is "twenty-one trillion, one hundred thirteen billion, twenty-two million, thirty-one thousand, one hundred twelve".