21000212322300 has 54 divisors (see below), whose sum is σ = 65823998848608. Its totient is φ = 5600056619040.

The previous prime is 21000212322289. The next prime is 21000212322311. The reversal of 21000212322300 is 322321200012.

21000212322300 is a `hidden beast` number, since 2 + 100 + 0 + 212 + 322 + 30 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (21000212322289) and next prime (21000212322311).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11666783724 + ... + 11666785523.

Almost surely, 2^{21000212322300} is an apocalyptic number.

21000212322300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21000212322300 is an abundant number, since it is smaller than the sum of its proper divisors (44823786526308).

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

21000212322300 is a wasteful number, since it uses less digits than its factorization.

21000212322300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23333569267 (or 23333569257 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21000212322300 its reverse (322321200012), we get a palindrome (21322533522312).

The spelling of 21000212322300 in words is "twenty-one trillion, two hundred twelve million, three hundred twenty-two thousand, three hundred".