12130121210 has 16 divisors (see below), whose sum is σ = 22050400392. Its totient is φ = 4804008000.

The previous prime is 12130121207. The next prime is 12130121219. The reversal of 12130121210 is 1212103121.

It can be written as a sum of positive squares in 4 ways, for example, as 12015009769 + 115111441 = 109613^2 + 10729^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12130121219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6004001 + ... + 6006020.

Almost surely, 2^12130121210 is an apocalyptic number.

12130121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12130121210 is a deficient number, since it is larger than the sum of its proper divisors (9920279182).

12130121210 is a wasteful number, since it uses less digits than its factorization.

12130121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12010129.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12130121210 its reverse (1212103121), we get a palindrome (13342224331).

The spelling of 12130121210 in words is "twelve billion, one hundred thirty million, one hundred twenty-one thousand, two hundred ten".