21337174200 has 96 divisors (see below), whose sum is σ = 66201856560. Its totient is φ = 5685043200.

The previous prime is 21337174169. The next prime is 21337174217. The reversal of 21337174200 is 247173312.

It is a super-2 number, since 2×21337174200² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 715590 + ... + 744810.

Almost surely, 2^21337174200 is an apocalyptic number.

21337174200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21337174200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33100928280).

21337174200 is an abundant number, since it is smaller than the sum of its proper divisors (44864682360).

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

21337174200 is a wasteful number, since it uses less digits than its factorization.

21337174200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30457 (or 30448 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The spelling of 21337174200 in words is "twenty-one billion, three hundred thirty-seven million, one hundred seventy-four thousand, two hundred".