12201121222 has 16 divisors (see below), whose sum is σ = 18936937440. Its totient is φ = 5888901312.

The previous prime is 12201121183. The next prime is 12201121249. The reversal of 12201121222 is 22212110221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12201121196 and 12201121205.

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, 275983 + ... + 317125.

It is an arithmetic number, because the mean of its divisors is an integer number (1183558590).

Almost surely, 2^12201121222 is an apocalyptic number.

12201121222 is a deficient number, since it is larger than the sum of its proper divisors (6735816218).

12201121222 is a wasteful number, since it uses less digits than its factorization.

12201121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46287.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12201121222 its reverse (22212110221), we get a palindrome (34413231443).

The spelling of 12201121222 in words is "twelve billion, two hundred one million, one hundred twenty-one thousand, two hundred twenty-two".