12120212122 has 8 divisors (see below), whose sum is σ = 18478356372. Its totient is φ = 5960760000.

The previous prime is 12120212113. The next prime is 12120212173. The reversal of 12120212122 is 22121202121.

It is a happy number.

12120212122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12086583721 + 33628401 = 109939^2 + 5799^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12120212096 and 12120212105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49672879 + ... + 49673122.

Almost surely, 2^12120212122 is an apocalyptic number.

12120212122 is a deficient number, since it is larger than the sum of its proper divisors (6358144250).

12120212122 is an equidigital number, since it uses as much as digits as its factorization.

12120212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99346064.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12120212122 its reverse (22121202121), we get a palindrome (34241414243).

It can be divided in two parts, 121202121 and 22, that multiplied together give a palindrome (2666446662).

The spelling of 12120212122 in words is "twelve billion, one hundred twenty million, two hundred twelve thousand, one hundred twenty-two".