21112244221112 has 16 divisors (see below), whose sum is σ = 43184135907000. Its totient is φ = 9596474645920.

The previous prime is 21112244221087. The next prime is 21112244221127.

21112244221112 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119955932987 + ... + 119955933162.

Almost surely, 2^{21112244221112} is an apocalyptic number.

21112244221112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21112244221112 is an abundant number, since it is smaller than the sum of its proper divisors (22071891685888).

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

21112244221112 is a wasteful number, since it uses less digits than its factorization.

21112244221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239911866166 (or 239911866162 counting only the distinct ones).

The product of its digits is 1024, while the sum is 26.

It can be divided in two parts, 2111224 and 4221112, that added together give a palindrome (6332336).

The spelling of 21112244221112 in words is "twenty-one trillion, one hundred twelve billion, two hundred forty-four million, two hundred twenty-one thousand, one hundred twelve".