12110101222221 has 96 divisors (see below), whose sum is σ = 18445920480000. Its totient is φ = 7647854505984.

The previous prime is 12110101222211. The next prime is 12110101222291. The reversal of 12110101222221 is 12222210101121.

12110101222221 is a `hidden beast` number, since 1 + 211 + 0 + 10 + 1 + 222 + 221 = 666.

It is not a de Polignac number, because 12110101222221 - 2¹⁷ = 12110101091149 is a prime.

It is a super-2 number, since 2×12110101222221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12110101222194 and 12110101222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110101222211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1033367400 + ... + 1033379118.

It is an arithmetic number, because the mean of its divisors is an integer number (192145005000).

Almost surely, 2^{12110101222221} is an apocalyptic number.

It is an amenable number.

12110101222221 is a deficient number, since it is larger than the sum of its proper divisors (6335819257779).

12110101222221 is a wasteful number, since it uses less digits than its factorization.

12110101222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12323 (or 12320 counting only the distinct ones).

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

Adding to 12110101222221 its reverse (12222210101121), we get a palindrome (24332311323342).

The spelling of 12110101222221 in words is "twelve trillion, one hundred ten billion, one hundred one million, two hundred twenty-two thousand, two hundred twenty-one".