12110220220121 has 8 divisors (see below), whose sum is σ = 12405637377000. Its totient is φ = 11814805250560.

The previous prime is 12110220220031. The next prime is 12110220220243. The reversal of 12110220220121 is 12102202201121.

It can be written as a sum of positive squares in 4 ways, for example, as 204539107600 + 11905681112521 = 452260^2 + 3450461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12110220220121 - 2³⁸ = 11835342313177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12110220220121.

It is not an unprimeable number, because it can be changed into a prime (12110220270121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19645805 + ... + 20252853.

It is an arithmetic number, because the mean of its divisors is an integer number (1550704672125).

Almost surely, 2^{12110220220121} is an apocalyptic number.

It is an amenable number.

12110220220121 is a deficient number, since it is larger than the sum of its proper divisors (295417156879).

12110220220121 is an equidigital number, since it uses as much as digits as its factorization.

12110220220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093659.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12110220220121 its reverse (12102202201121), we get a palindrome (24212422421242).

The spelling of 12110220220121 in words is "twelve trillion, one hundred ten billion, two hundred twenty million, two hundred twenty thousand, one hundred twenty-one".