21132220330200 has 192 divisors, whose sum is σ = 74870694754560. Its totient is φ = 4830076177920.

The previous prime is 21132220330181. The next prime is 21132220330201. The reversal of 21132220330200 is 203302223112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132220330201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205761262 + ... + 205863938.

It is an arithmetic number, because the mean of its divisors is an integer number (389951535180).

Almost surely, 2^{21132220330200} is an apocalyptic number.

21132220330200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21132220330200 is an abundant number, since it is smaller than the sum of its proper divisors (53738474424360).

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

21132220330200 is a wasteful number, since it uses less digits than its factorization.

21132220330200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151706 (or 151697 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21132220330200 its reverse (203302223112), we get a palindrome (21335522553312).

The spelling of 21132220330200 in words is "twenty-one trillion, one hundred thirty-two billion, two hundred twenty million, three hundred thirty thousand, two hundred".