21152067200 has 192 divisors, whose sum is σ = 57942764640. Its totient is φ = 7564800000.

The previous prime is 21152067191. The next prime is 21152067203. The reversal of 21152067200 is 276025112.

It is a self number, because there is not a number n which added to its sum of digits gives 21152067200.

It is not an unprimeable number, because it can be changed into a prime (21152067203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2142275 + ... + 2152125.

Almost surely, 2^21152067200 is an apocalyptic number.

21152067200 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 21152067200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28971382320).

21152067200 is an abundant number, since it is smaller than the sum of its proper divisors (36790697440).

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

21152067200 is a wasteful number, since it uses less digits than its factorization.

21152067200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9947 (or 9930 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The spelling of 21152067200 in words is "twenty-one billion, one hundred fifty-two million, sixty-seven thousand, two hundred".