21272214300 has 72 divisors (see below), whose sum is σ = 61567903152. Its totient is φ = 5670720000.

The previous prime is 21272214277. The next prime is 21272214317. The reversal of 21272214300 is 341227212.

It is a congruent number.

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, 1064400 + ... + 1084200.

It is an arithmetic number, because the mean of its divisors is an integer number (855109766).

Almost surely, 2^21272214300 is an apocalyptic number.

21272214300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21272214300 is an abundant number, since it is smaller than the sum of its proper divisors (40295688852).

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

21272214300 is a wasteful number, since it uses less digits than its factorization.

21272214300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23399 (or 23392 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The spelling of 21272214300 in words is "twenty-one billion, two hundred seventy-two million, two hundred fourteen thousand, three hundred".