21227814434304 has 120 divisors (see below), whose sum is σ = 61747312323840. Its totient is φ = 7020221902848.

The previous prime is 21227814434227. The next prime is 21227814434347. The reversal of 21227814434304 is 40343441872212.

21227814434304 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 78 + 144 + 3 + 430 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 21227814434304.

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, 17551519 + ... + 18721950.

It is an arithmetic number, because the mean of its divisors is an integer number (514560936032).

Almost surely, 2^{21227814434304} is an apocalyptic number.

21227814434304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21227814434304 is an abundant number, since it is smaller than the sum of its proper divisors (40519497889536).

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

21227814434304 is a wasteful number, since it uses less digits than its factorization.

21227814434304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36273620 (or 36273601 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 45.

The spelling of 21227814434304 in words is "twenty-one trillion, two hundred twenty-seven billion, eight hundred fourteen million, four hundred thirty-four thousand, three hundred four".