21440500504412 has 48 divisors (see below), whose sum is σ = 42216644413440. Its totient is φ = 9443888136000.

The previous prime is 21440500504393. The next prime is 21440500504453.

21440500504412 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51116612 + ... + 51534347.

It is an arithmetic number, because the mean of its divisors is an integer number (879513425280).

Almost surely, 2^{21440500504412} is an apocalyptic number.

21440500504412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21440500504412 is a deficient number, since it is larger than the sum of its proper divisors (20776143909028).

21440500504412 is a wasteful number, since it uses less digits than its factorization.

21440500504412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102651122 (or 102651120 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

It can be divided in two parts, 21440500 and 504412, that added together give a palindrome (21944912).

The spelling of 21440500504412 in words is "twenty-one trillion, four hundred forty billion, five hundred million, five hundred four thousand, four hundred twelve".