21110132021112 has 24 divisors (see below), whose sum is σ = 57173274224040. Its totient is φ = 7036710673680.

The previous prime is 21110132021089. The next prime is 21110132021117. The reversal of 21110132021112 is 21112023101112.

It is a happy number.

21110132021112 is a `hidden beast` number, since 21 + 1 + 101 + 320 + 211 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110132021117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146598138964 + ... + 146598139107.

It is an arithmetic number, because the mean of its divisors is an integer number (2382219759335).

Almost surely, 2^{21110132021112} is an apocalyptic number.

It is an amenable number.

21110132021112 is an abundant number, since it is smaller than the sum of its proper divisors (36063142202928).

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

21110132021112 is a wasteful number, since it uses less digits than its factorization.

21110132021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293196278083 (or 293196278076 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 21110132021112 its reverse (21112023101112), we get a palindrome (42222155122224).

The spelling of 21110132021112 in words is "twenty-one trillion, one hundred ten billion, one hundred thirty-two million, twenty-one thousand, one hundred twelve".