12002221022 has 32 divisors (see below), whose sum is σ = 19766592000. Its totient is φ = 5420497600.

The previous prime is 12002221003. The next prime is 12002221067. The reversal of 12002221022 is 22012220021.

It is a junction number, because it is equal to n+sod(n) for n = 12002220988 and 12002221006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2579354 + ... + 2584002.

It is an arithmetic number, because the mean of its divisors is an integer number (617706000).

Almost surely, 2^12002221022 is an apocalyptic number.

12002221022 is a deficient number, since it is larger than the sum of its proper divisors (7764370978).

12002221022 is a wasteful number, since it uses less digits than its factorization.

12002221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5392.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12002221022 its reverse (22012220021), we get a palindrome (34014441043).

It can be divided in two parts, 1200 and 2221022, that added together give a palindrome (2222222).

The spelling of 12002221022 in words is "twelve billion, two million, two hundred twenty-one thousand, twenty-two".