12121002122 has 8 divisors (see below), whose sum is σ = 18361518372. Its totient is φ = 6000496000.

The previous prime is 12121002119. The next prime is 12121002143. The reversal of 12121002122 is 22120012121.

12121002122 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 11944085521 + 176916601 = 109289^2 + 13301^2 .

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 = 12121002097 and 12121002106.

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, 30002279 + ... + 30002682.

Almost surely, 2^12121002122 is an apocalyptic number.

12121002122 is a deficient number, since it is larger than the sum of its proper divisors (6240516250).

12121002122 is a wasteful number, since it uses less digits than its factorization.

12121002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60005064.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12121002122 its reverse (22120012121), we get a palindrome (34241014243).

Subtracting 12121002122 from its reverse (22120012121), we obtain a palindrome (9999009999).

The spelling of 12121002122 in words is "twelve billion, one hundred twenty-one million, two thousand, one hundred twenty-two".