12122201022111 has 24 divisors (see below), whose sum is σ = 17949807075200. Its totient is φ = 7879095531216.

The previous prime is 12122201022091. The next prime is 12122201022143. The reversal of 12122201022111 is 11122010222121.

12122201022111 is a `hidden beast` number, since 1 + 212 + 220 + 1 + 0 + 221 + 11 = 666.

It is not a de Polignac number, because 12122201022111 - 2⁹ = 12122201021599 is a prime.

It is a super-3 number, since 3×12122201022111³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122201022311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28420411 + ... + 28843788.

Almost surely, 2^{12122201022111} is an apocalyptic number.

12122201022111 is a deficient number, since it is larger than the sum of its proper divisors (5827606053089).

12122201022111 is a wasteful number, since it uses less digits than its factorization.

12122201022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57264795 (or 57264792 counting only the distinct ones).

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

Adding to 12122201022111 its reverse (11122010222121), we get a palindrome (23244211244232).

The spelling of 12122201022111 in words is "twelve trillion, one hundred twenty-two billion, two hundred one million, twenty-two thousand, one hundred eleven".