21132204222 has 8 divisors (see below), whose sum is σ = 42264408456. Its totient is φ = 7044068072.

The previous prime is 21132204221. The next prime is 21132204281. The reversal of 21132204222 is 22240223112.

It is a sphenic number, since it is the product of 3 distinct primes.

21132204222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132204221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1761017013 + ... + 1761017024.

It is an arithmetic number, because the mean of its divisors is an integer number (5283051057).

Almost surely, 2^21132204222 is an apocalyptic number.

21132204222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21132204222 is a wasteful number, since it uses less digits than its factorization.

21132204222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3522034042.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 21132204222 its reverse (22240223112), we get a palindrome (43372427334).

The spelling of 21132204222 in words is "twenty-one billion, one hundred thirty-two million, two hundred four thousand, two hundred twenty-two".