12212201222 has 16 divisors (see below), whose sum is σ = 19829624640. Its totient is φ = 5607194112.

The previous prime is 12212201219. The next prime is 12212201231. The reversal of 12212201222 is 22210221221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212201222.

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, 1211822 + ... + 1221857.

It is an arithmetic number, because the mean of its divisors is an integer number (1239351540).

Almost surely, 2^12212201222 is an apocalyptic number.

12212201222 is a deficient number, since it is larger than the sum of its proper divisors (7617423418).

12212201222 is a wasteful number, since it uses less digits than its factorization.

12212201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433887.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12212201222 its reverse (22210221221), we get a palindrome (34422422443).

The spelling of 12212201222 in words is "twelve billion, two hundred twelve million, two hundred one thousand, two hundred twenty-two".