12201222220222 has 96 divisors (see below), whose sum is σ = 22541016388032. Its totient is φ = 4850333872128.

The previous prime is 12201222220207. The next prime is 12201222220223. The reversal of 12201222220222 is 22202222210221.

It is a junction number, because it is equal to n+sod(n) for n = 12201222220193 and 12201222220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201222220223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50424358 + ... + 50665750.

It is an arithmetic number, because the mean of its divisors is an integer number (234802254042).

Almost surely, 2^{12201222220222} is an apocalyptic number.

12201222220222 is a deficient number, since it is larger than the sum of its proper divisors (10339794167810).

12201222220222 is a wasteful number, since it uses less digits than its factorization.

12201222220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241650 (or 241631 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 12201222220222 its reverse (22202222210221), we get a palindrome (34403444430443).

The spelling of 12201222220222 in words is "twelve trillion, two hundred one billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty-two".