12102021232 has 20 divisors (see below), whose sum is σ = 26797332976. Its totient is φ = 5186580480.

The previous prime is 12102021221. The next prime is 12102021241. The reversal of 12102021232 is 23212020121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 54026769 + ... + 54026992.

Almost surely, 2^12102021232 is an apocalyptic number.

It is an amenable number.

12102021232 is an abundant number, since it is smaller than the sum of its proper divisors (14695311744).

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

12102021232 is a wasteful number, since it uses less digits than its factorization.

12102021232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108053776 (or 108053770 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12102021232 its reverse (23212020121), we get a palindrome (35314041353).

The spelling of 12102021232 in words is "twelve billion, one hundred two million, twenty-one thousand, two hundred thirty-two".