12210112020121 has 16 divisors (see below), whose sum is σ = 12371261760000. Its totient is φ = 12049507426176.

The previous prime is 12210112020107. The next prime is 12210112020131. The reversal of 12210112020121 is 12102021101221.

It is a cyclic number.

It is not a de Polignac number, because 12210112020121 - 2⁵ = 12210112020089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210112020095 and 12210112020104.

It is not an unprimeable number, because it can be changed into a prime (12210112020101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177854520 + ... + 177923158.

It is an arithmetic number, because the mean of its divisors is an integer number (773203860000).

Almost surely, 2^{12210112020121} is an apocalyptic number.

It is an amenable number.

12210112020121 is a deficient number, since it is larger than the sum of its proper divisors (161149739879).

12210112020121 is an equidigital number, since it uses as much as digits as its factorization.

12210112020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72576.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12210112020121 its reverse (12102021101221), we get a palindrome (24312133121342).

The spelling of 12210112020121 in words is "twelve trillion, two hundred ten billion, one hundred twelve million, twenty thousand, one hundred twenty-one".