12102000120121 has 4 divisors (see below), whose sum is σ = 12102116490100. Its totient is φ = 12101883750144.

The previous prime is 12102000120103. The next prime is 12102000120139. The reversal of 12102000120121 is 12102100020121.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12102000120103) and next prime (12102000120139).

It can be written as a sum of positive squares in 2 ways, for example, as 5729727879225 + 6372272240896 = 2393685^2 + 2524336^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102000120121 - 2²⁹ = 12101463249209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102000120151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58028856 + ... + 58237033.

It is an arithmetic number, because the mean of its divisors is an integer number (3025529122525).

Almost surely, 2^{12102000120121} is an apocalyptic number.

It is an amenable number.

12102000120121 is a deficient number, since it is larger than the sum of its proper divisors (116369979).

12102000120121 is a wasteful number, since it uses less digits than its factorization.

12102000120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116369978.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12102000120121 its reverse (12102100020121), we get a palindrome (24204100140242).

The spelling of 12102000120121 in words is "twelve trillion, one hundred two billion, one hundred twenty thousand, one hundred twenty-one".