21330102132 has 36 divisors (see below), whose sum is σ = 53926891200. Its totient is φ = 7108829712.

The previous prime is 21330102119. The next prime is 21330102137. The reversal of 21330102132 is 23120103312.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330102137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179733 + ... + 273795.

It is an arithmetic number, because the mean of its divisors is an integer number (1497969200).

Almost surely, 2^21330102132 is an apocalyptic number.

It is an amenable number.

21330102132 is an abundant number, since it is smaller than the sum of its proper divisors (32596789068).

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

21330102132 is a wasteful number, since it uses less digits than its factorization.

21330102132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100372 (or 100367 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21330102132 its reverse (23120103312), we get a palindrome (44450205444).

The spelling of 21330102132 in words is "twenty-one billion, three hundred thirty million, one hundred two thousand, one hundred thirty-two".