21214322300 has 36 divisors (see below), whose sum is σ = 46067207760. Its totient is φ = 8479806720.

The previous prime is 21214322291. The next prime is 21214322303. The reversal of 21214322300 is 322341212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21214322303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71396 + ... + 218004.

It is an arithmetic number, because the mean of its divisors is an integer number (1279644660).

Almost surely, 2^21214322300 is an apocalyptic number.

21214322300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21214322300 is an abundant number, since it is smaller than the sum of its proper divisors (24852885460).

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

21214322300 is a wasteful number, since it uses less digits than its factorization.

21214322300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148070 (or 148063 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21214322300 its reverse (322341212), we get a palindrome (21536663512).

The spelling of 21214322300 in words is "twenty-one billion, two hundred fourteen million, three hundred twenty-two thousand, three hundred".