12032221000 has 32 divisors (see below), whose sum is σ = 28155399480. Its totient is φ = 4812888000.

The previous prime is 12032220997. The next prime is 12032221007. The reversal of 12032221000 is 12223021.

12032221000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4271668164 + 7760552836 = 65358^2 + 88094^2 .

It is not an unprimeable number, because it can be changed into a prime (12032221007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6015111 + ... + 6017110.

Almost surely, 2^12032221000 is an apocalyptic number.

12032221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12032221000 is an abundant number, since it is smaller than the sum of its proper divisors (16123178480).

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

12032221000 is a wasteful number, since it uses less digits than its factorization.

12032221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12032242 (or 12032228 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12032221000 its reverse (12223021), we get a palindrome (12044444021).

The spelling of 12032221000 in words is "twelve billion, thirty-two million, two hundred twenty-one thousand".