21344300422120 has 32 divisors (see below), whose sum is σ = 51718881793320. Its totient is φ = 7880972463360.

The previous prime is 21344300422091. The next prime is 21344300422229. The reversal of 21344300422120 is 2122400344312.

It can be written as a sum of positive squares in 4 ways, for example, as 12988859248036 + 8355441174084 = 3604006^2 + 2890578^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20523365271 + ... + 20523366310.

Almost surely, 2^{21344300422120} is an apocalyptic number.

21344300422120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21344300422120 is an abundant number, since it is smaller than the sum of its proper divisors (30374581371200).

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

21344300422120 is a wasteful number, since it uses less digits than its factorization.

21344300422120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41046731605 (or 41046731601 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 21344300422120 its reverse (2122400344312), we get a palindrome (23466700766432).

The spelling of 21344300422120 in words is "twenty-one trillion, three hundred forty-four billion, three hundred million, four hundred twenty-two thousand, one hundred twenty".