12012001222 has 16 divisors (see below), whose sum is σ = 19472579280. Its totient is φ = 5524407072.

The previous prime is 12012001193. The next prime is 12012001237. The reversal of 12012001222 is 22210021021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

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, 808897 + ... + 823612.

It is an arithmetic number, because the mean of its divisors is an integer number (1217036205).

Almost surely, 2^12012001222 is an apocalyptic number.

12012001222 is a deficient number, since it is larger than the sum of its proper divisors (7460578058).

12012001222 is a wasteful number, since it uses less digits than its factorization.

12012001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632807.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12012001222 its reverse (22210021021), we get a palindrome (34222022243).

The spelling of 12012001222 in words is "twelve billion, twelve million, one thousand, two hundred twenty-two".