21440100502224 has 60 divisors (see below), whose sum is σ = 61019495097600. Its totient is φ = 7025569653312.

The previous prime is 21440100502187. The next prime is 21440100502259. The reversal of 21440100502224 is 42220500104412.

It is a happy number.

21440100502224 is a `hidden beast` number, since 2 + 14 + 40 + 100 + 502 + 2 + 2 + 4 = 666.

It is a congruent number.

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, 1261767664 + ... + 1261784655.

It is an arithmetic number, because the mean of its divisors is an integer number (1016991584960).

Almost surely, 2^{21440100502224} is an apocalyptic number.

21440100502224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21440100502224 is an abundant number, since it is smaller than the sum of its proper divisors (39579394595376).

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

21440100502224 is a wasteful number, since it uses less digits than its factorization.

21440100502224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523552392 (or 2523552383 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 21440100502224 its reverse (42220500104412), we get a palindrome (63660600606636).

The spelling of 21440100502224 in words is "twenty-one trillion, four hundred forty billion, one hundred million, five hundred two thousand, two hundred twenty-four".