12012331222 has 16 divisors (see below), whose sum is σ = 18659187360. Its totient is φ = 5793032448.

The previous prime is 12012331217. The next prime is 12012331229. The reversal of 12012331222 is 22213321021.

It is a super-2 number, since 2×12012331222² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12012331222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012331229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51003 + ... + 163174.

It is an arithmetic number, because the mean of its divisors is an integer number (1166199210).

Almost surely, 2^12012331222 is an apocalyptic number.

12012331222 is a deficient number, since it is larger than the sum of its proper divisors (6646856138).

12012331222 is a wasteful number, since it uses less digits than its factorization.

12012331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215175.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12012331222 its reverse (22213321021), we get a palindrome (34225652243).

The spelling of 12012331222 in words is "twelve billion, twelve million, three hundred thirty-one thousand, two hundred twenty-two".