12002220012 has 24 divisors (see below), whose sum is σ = 28007179200. Its totient is φ = 4000454416.

The previous prime is 12002219981. The next prime is 12002220037. The reversal of 12002220012 is 21002220021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12002220012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203539 + ... + 255797.

It is an arithmetic number, because the mean of its divisors is an integer number (1166965800).

Almost surely, 2^12002220012 is an apocalyptic number.

12002220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12002220012 is an abundant number, since it is smaller than the sum of its proper divisors (16004959188).

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

12002220012 is a wasteful number, since it uses less digits than its factorization.

12002220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71405 (or 71403 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12002220012 its reverse (21002220021), we get a palindrome (33004440033).

Subtracting 12002220012 from its reverse (21002220021), we obtain a palindrome (9000000009).

The spelling of 12002220012 in words is "twelve billion, two million, two hundred twenty thousand, twelve".