21114555541112 has 32 divisors (see below), whose sum is σ = 43197321323520. Its totient is φ = 9595645753440.

The previous prime is 21114555541111. The next prime is 21114555541127.

21114555541112 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114555541111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23041688 + ... + 23940519.

It is an arithmetic number, because the mean of its divisors is an integer number (1349916291360).

Almost surely, 2^{21114555541112} is an apocalyptic number.

21114555541112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21114555541112 is an abundant number, since it is smaller than the sum of its proper divisors (22082765782408).

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

21114555541112 is a wasteful number, since it uses less digits than its factorization.

21114555541112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46987331 (or 46987327 counting only the distinct ones).

The product of its digits is 40000, while the sum is 38.

It can be divided in two parts, 2111455 and 5541112, that added together give a palindrome (7652567).

The spelling of 21114555541112 in words is "twenty-one trillion, one hundred fourteen billion, five hundred fifty-five million, five hundred forty-one thousand, one hundred twelve".