12122131110121 has 8 divisors (see below), whose sum is σ = 12245601299400. Its totient is φ = 11999167986048.

The previous prime is 12122131110059. The next prime is 12122131110137. The reversal of 12122131110121 is 12101113122121.

It can be written as a sum of positive squares in 4 ways, for example, as 4128166540521 + 7993964569600 = 2031789^2 + 2827360^2 .

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 12122131110121 - 2²¹ = 12122129012969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122131113121) 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, 126718246 + ... + 126813871.

It is an arithmetic number, because the mean of its divisors is an integer number (1530700162425).

Almost surely, 2^{12122131110121} is an apocalyptic number.

It is an amenable number.

12122131110121 is a deficient number, since it is larger than the sum of its proper divisors (123470189279).

12122131110121 is a wasteful number, since it uses less digits than its factorization.

12122131110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253532603.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 12122131110121 its reverse (12101113122121), we get a palindrome (24223244232242).

The spelling of 12122131110121 in words is "twelve trillion, one hundred twenty-two billion, one hundred thirty-one million, one hundred ten thousand, one hundred twenty-one".