21332333132 has 48 divisors (see below), whose sum is σ = 41020154784. Its totient is φ = 9626496000.

The previous prime is 21332333131. The next prime is 21332333161. The reversal of 21332333132 is 23133323312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21332333131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6704582 + ... + 6707762.

It is an arithmetic number, because the mean of its divisors is an integer number (854586558).

Almost surely, 2^21332333132 is an apocalyptic number.

21332333132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21332333132 is a deficient number, since it is larger than the sum of its proper divisors (19687821652).

21332333132 is a wasteful number, since it uses less digits than its factorization.

21332333132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250 (or 4248 counting only the distinct ones).

The product of its digits is 5832, while the sum is 26.

Adding to 21332333132 its reverse (23133323312), we get a palindrome (44465656444).

The spelling of 21332333132 in words is "twenty-one billion, three hundred thirty-two million, three hundred thirty-three thousand, one hundred thirty-two".