21437337200120 has 16 divisors (see below), whose sum is σ = 48234008700360. Its totient is φ = 8574934880032.

The previous prime is 21437337200099. The next prime is 21437337200129. The reversal of 21437337200120 is 2100273373412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21437337200129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267966714962 + ... + 267966715041.

Almost surely, 2^{21437337200120} is an apocalyptic number.

21437337200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21437337200120 is an abundant number, since it is smaller than the sum of its proper divisors (26796671500240).

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

21437337200120 is a wasteful number, since it uses less digits than its factorization.

21437337200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535933430014 (or 535933430010 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 21437337200120 in words is "twenty-one trillion, four hundred thirty-seven billion, three hundred thirty-seven million, two hundred thousand, one hundred twenty".