12002221032 has 32 divisors (see below), whose sum is σ = 30100226400. Its totient is φ = 3988117184.

The previous prime is 12002221003. The next prime is 12002221067. The reversal of 12002221032 is 23012220021.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781182 + ... + 796397.

It is an arithmetic number, because the mean of its divisors is an integer number (940632075).

Almost surely, 2^12002221032 is an apocalyptic number.

12002221032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12002221032 is an abundant number, since it is smaller than the sum of its proper divisors (18098005368).

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

12002221032 is a wasteful number, since it uses less digits than its factorization.

12002221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577905 (or 1577901 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12002221032 its reverse (23012220021), we get a palindrome (35014441053).

The spelling of 12002221032 in words is "twelve billion, two million, two hundred twenty-one thousand, thirty-two".