21332111132 has 12 divisors (see below), whose sum is σ = 37354150680. Its totient is φ = 10659496656.

The previous prime is 21332111123. The next prime is 21332111149. The reversal of 21332111132 is 23111123312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1632407 + ... + 1645422.

It is an arithmetic number, because the mean of its divisors is an integer number (3112845890).

Almost surely, 2^21332111132 is an apocalyptic number.

It is an amenable number.

21332111132 is a deficient number, since it is larger than the sum of its proper divisors (16022039548).

21332111132 is a wasteful number, since it uses less digits than its factorization.

21332111132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3279460 (or 3279458 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 21332111132 its reverse (23111123312), we get a palindrome (44443234444).

The spelling of 21332111132 in words is "twenty-one billion, three hundred thirty-two million, one hundred eleven thousand, one hundred thirty-two".