21201332300 has 18 divisors (see below), whose sum is σ = 46006891308. Its totient is φ = 8480532880.

The previous prime is 21201332293. The next prime is 21201332333. The reversal of 21201332300 is 323310212.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106006562 + ... + 106006761.

It is an arithmetic number, because the mean of its divisors is an integer number (2555938406).

Almost surely, 2^21201332300 is an apocalyptic number.

21201332300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21201332300 is an abundant number, since it is smaller than the sum of its proper divisors (24805559008).

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

21201332300 is a wasteful number, since it uses less digits than its factorization.

21201332300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212013337 (or 212013330 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21201332300 its reverse (323310212), we get a palindrome (21524642512).

The spelling of 21201332300 in words is "twenty-one billion, two hundred one million, three hundred thirty-two thousand, three hundred".