21143622634112 has 64 divisors (see below), whose sum is σ = 45956421381600. Its totient is φ = 9609674572800.

The previous prime is 21143622634103. The next prime is 21143622634117.

21143622634112 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (21143622634117) 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, 11974214 + ... + 13626042.

Almost surely, 2^{21143622634112} is an apocalyptic number.

21143622634112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21143622634112 is an abundant number, since it is smaller than the sum of its proper divisors (24812798747488).

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

21143622634112 is a wasteful number, since it uses less digits than its factorization.

21143622634112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660945 (or 1660933 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

It can be divided in two parts, 2114362 and 2634112, that added together give a palindrome (4748474).

The spelling of 21143622634112 in words is "twenty-one trillion, one hundred forty-three billion, six hundred twenty-two million, six hundred thirty-four thousand, one hundred twelve".