21322012300 has 36 divisors (see below), whose sum is σ = 46298633920. Its totient is φ = 8523299520.

The previous prime is 21322012279. The next prime is 21322012331. The reversal of 21322012300 is 321022312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88666 + ... + 224734.

Almost surely, 2^21322012300 is an apocalyptic number.

21322012300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21322012300 is an abundant number, since it is smaller than the sum of its proper divisors (24976621620).

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

21322012300 is a wasteful number, since it uses less digits than its factorization.

21322012300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137650 (or 137643 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21322012300 its reverse (321022312), we get a palindrome (21643034612).

It can be divided in two parts, 21322012 and 300, that added together give a palindrome (21322312).

The spelling of 21322012300 in words is "twenty-one billion, three hundred twenty-two million, twelve thousand, three hundred".