12000221132 has 6 divisors (see below), whose sum is σ = 21000386988. Its totient is φ = 6000110564.

The previous prime is 12000221131. The next prime is 12000221183. The reversal of 12000221132 is 23112200021.

It is a happy number.

It is a super-2 number, since 2×12000221132² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12000221131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1500027638 + ... + 1500027645.

It is an arithmetic number, because the mean of its divisors is an integer number (3500064498).

Almost surely, 2^12000221132 is an apocalyptic number.

It is an amenable number.

12000221132 is a deficient number, since it is larger than the sum of its proper divisors (9000165856).

12000221132 is a wasteful number, since it uses less digits than its factorization.

12000221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000055287 (or 3000055285 counting only the distinct ones).

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

Adding to 12000221132 its reverse (23112200021), we get a palindrome (35112421153).

The spelling of 12000221132 in words is "twelve billion, two hundred twenty-one thousand, one hundred thirty-two".