12210110121 has 24 divisors (see below), whose sum is σ = 18198038880. Its totient is φ = 7274629120.

The previous prime is 12210110093. The next prime is 12210110137. The reversal of 12210110121 is 12101101221.

It is not a de Polignac number, because 12210110121 - 2⁷ = 12210109993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12210110097 and 12210110106.

It is not an unprimeable number, because it can be changed into a prime (12210110621) 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, 263640 + ... + 306473.

It is an arithmetic number, because the mean of its divisors is an integer number (758251620).

Almost surely, 2^12210110121 is an apocalyptic number.

12210110121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12210110121 is a deficient number, since it is larger than the sum of its proper divisors (5987928759).

12210110121 is a wasteful number, since it uses less digits than its factorization.

12210110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570197 (or 570186 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12210110121 its reverse (12101101221), we get a palindrome (24311211342).

It can be divided in two parts, 1 and 2210110121, that added together give a palindrome (2210110122).

The spelling of 12210110121 in words is "twelve billion, two hundred ten million, one hundred ten thousand, one hundred twenty-one".