12201210112221 has 32 divisors (see below), whose sum is σ = 19467701473920. Its totient is φ = 7507903416192.

The previous prime is 12201210112219. The next prime is 12201210112229. The reversal of 12201210112221 is 12221101210221.

12201210112221 is a `hidden beast` number, since 1 + 220 + 1 + 210 + 1 + 12 + 221 = 666.

12201210112221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12201210112221 - 2¹ = 12201210112219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12201210112194 and 12201210112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201210112229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3739650 + ... + 6195756.

It is an arithmetic number, because the mean of its divisors is an integer number (608365671060).

Almost surely, 2^{12201210112221} is an apocalyptic number.

It is an amenable number.

12201210112221 is a deficient number, since it is larger than the sum of its proper divisors (7266491361699).

12201210112221 is a wasteful number, since it uses less digits than its factorization.

12201210112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470282 (or 2470276 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12201210112221 its reverse (12221101210221), we get a palindrome (24422311322442).

The spelling of 12201210112221 in words is "twelve trillion, two hundred one billion, two hundred ten million, one hundred twelve thousand, two hundred twenty-one".