21913341200 has 60 divisors (see below), whose sum is σ = 52698472320. Its totient is φ = 8756734080.

The previous prime is 21913341187. The next prime is 21913341211. The reversal of 21913341200 is 214331912.

It is a self number, because there is not a number n which added to its sum of digits gives 21913341200.

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, 389237 + ... + 441963.

It is an arithmetic number, because the mean of its divisors is an integer number (878307872).

Almost surely, 2^21913341200 is an apocalyptic number.

21913341200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21913341200 is an abundant number, since it is smaller than the sum of its proper divisors (30785131120).

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

21913341200 is a wasteful number, since it uses less digits than its factorization.

21913341200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53784 (or 53773 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 21913341200 in words is "twenty-one billion, nine hundred thirteen million, three hundred forty-one thousand, two hundred".