21322344300 has 72 divisors (see below), whose sum is σ = 63005300736. Its totient is φ = 5564976960.

The previous prime is 21322344289. The next prime is 21322344301. The reversal of 21322344300 is 344322312.

It is not an unprimeable number, because it can be changed into a prime (21322344301) 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, 742012 + ... + 770211.

Almost surely, 2^21322344300 is an apocalyptic number.

21322344300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21322344300 is an abundant number, since it is smaller than the sum of its proper divisors (41682956436).

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

21322344300 is a wasteful number, since it uses less digits than its factorization.

21322344300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512287 (or 1512280 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 21322344300 its reverse (344322312), we get a palindrome (21666666612).

It can be divided in two parts, 2132 and 2344300, that added together give a palindrome (2346432).

The spelling of 21322344300 in words is "twenty-one billion, three hundred twenty-two million, three hundred forty-four thousand, three hundred".