21444220010124 has 72 divisors (see below), whose sum is σ = 54387881730000. Its totient is φ = 7124138169984.

The previous prime is 21444220010111. The next prime is 21444220010137. The reversal of 21444220010124 is 42101002244412.

21444220010124 is a `hidden beast` number, since 2 + 1 + 4 + 442 + 200 + 1 + 0 + 12 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (21444220010111) and next prime (21444220010137).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25582447 + ... + 26407385.

It is an arithmetic number, because the mean of its divisors is an integer number (755387246250).

Almost surely, 2^{21444220010124} is an apocalyptic number.

It is an amenable number.

21444220010124 is an abundant number, since it is smaller than the sum of its proper divisors (32943661719876).

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

21444220010124 is a wasteful number, since it uses less digits than its factorization.

21444220010124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827367 (or 827362 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 21444220010124 its reverse (42101002244412), we get a palindrome (63545222254536).

The spelling of 21444220010124 in words is "twenty-one trillion, four hundred forty-four billion, two hundred twenty million, ten thousand, one hundred twenty-four".