12032210021 has 12 divisors (see below), whose sum is σ = 13038530400. Its totient is φ = 11098498320.

The previous prime is 12032210011. The next prime is 12032210059. The reversal of 12032210021 is 12001223021.

It is a happy number.

It is not a de Polignac number, because 12032210021 - 2²⁶ = 11965101157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12032209978 and 12032210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12032210011) 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, 210986 + ... + 261876.

It is an arithmetic number, because the mean of its divisors is an integer number (1086544200).

Almost surely, 2^12032210021 is an apocalyptic number.

It is an amenable number.

12032210021 is a deficient number, since it is larger than the sum of its proper divisors (1006320379).

12032210021 is a wasteful number, since it uses less digits than its factorization.

12032210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52316 (or 52303 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12032210021 its reverse (12001223021), we get a palindrome (24033433042).

The spelling of 12032210021 in words is "twelve billion, thirty-two million, two hundred ten thousand, twenty-one".