21142024112 has 60 divisors (see below), whose sum is σ = 45081046920. Its totient is φ = 9598068480.

The previous prime is 21142024093. The next prime is 21142024151.

21142024112 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1656668 + ... + 1669380.

It is an arithmetic number, because the mean of its divisors is an integer number (751350782).

Almost surely, 2^21142024112 is an apocalyptic number.

21142024112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21142024112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22540523460).

21142024112 is an abundant number, since it is smaller than the sum of its proper divisors (23939022808).

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

21142024112 is a wasteful number, since it uses less digits than its factorization.

21142024112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13602 (or 13585 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

It can be divided in two parts, 211420 and 24112, that added together give a palindrome (235532).

The spelling of 21142024112 in words is "twenty-one billion, one hundred forty-two million, twenty-four thousand, one hundred twelve".