12201221210222 has 16 divisors (see below), whose sum is σ = 19965914215344. Its totient is φ = 5545932000000.

The previous prime is 12201221210173. The next prime is 12201221210249. The reversal of 12201221210222 is 22201212210221.

It is a junction number, because it is equal to n+sod(n) for n = 12201221210194 and 12201221210203.

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, 2259779 + ... + 5432222.

It is an arithmetic number, because the mean of its divisors is an integer number (1247869638459).

Almost surely, 2^{12201221210222} is an apocalyptic number.

12201221210222 is a deficient number, since it is larger than the sum of its proper divisors (7764693005122).

12201221210222 is a wasteful number, since it uses less digits than its factorization.

12201221210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7764115.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12201221210222 its reverse (22201212210221), we get a palindrome (34402433420443).

Subtracting 12201221210222 from its reverse (22201212210221), we obtain a palindrome (9999990999999).

The spelling of 12201221210222 in words is "twelve trillion, two hundred one billion, two hundred twenty-one million, two hundred ten thousand, two hundred twenty-two".