21222333132 has 96 divisors (see below), whose sum is σ = 66486787584. Its totient is φ = 5088268800.

The previous prime is 21222333101. The next prime is 21222333149. The reversal of 21222333132 is 23133322212.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 871369 + ... + 895392.

It is an arithmetic number, because the mean of its divisors is an integer number (692570704).

Almost surely, 2^21222333132 is an apocalyptic number.

21222333132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21222333132 is an abundant number, since it is smaller than the sum of its proper divisors (45264454452).

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

21222333132 is a wasteful number, since it uses less digits than its factorization.

21222333132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766799 (or 1766797 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

Adding to 21222333132 its reverse (23133322212), we get a palindrome (44355655344).

The spelling of 21222333132 in words is "twenty-one billion, two hundred twenty-two million, three hundred thirty-three thousand, one hundred thirty-two".