21232222020200 has 48 divisors (see below), whose sum is σ = 49365563383500. Its totient is φ = 8492777464320.

The previous prime is 21232222020161. The next prime is 21232222020223. The reversal of 21232222020200 is 202022223212.

It can be written as a sum of positive squares in 6 ways, for example, as 10215783933796 + 11016438086404 = 3196214^2 + 3319102^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15542396 + ... + 16853204.

Almost surely, 2^{21232222020200} is an apocalyptic number.

21232222020200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21232222020200 is an abundant number, since it is smaller than the sum of its proper divisors (28133341363300).

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

21232222020200 is a wasteful number, since it uses less digits than its factorization.

21232222020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391814 (or 1391805 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 21232222020200 its reverse (202022223212), we get a palindrome (21434244243412).

The spelling of 21232222020200 in words is "twenty-one trillion, two hundred thirty-two billion, two hundred twenty-two million, twenty thousand, two hundred".