12121200000002 has 8 divisors (see below), whose sum is σ = 19251317647116. Its totient is φ = 5704094117632.

The previous prime is 12121200000001. The next prime is 12121200000083. The reversal of 12121200000002 is 20000000212121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12049708470361 + 71491529641 = 3471269^2 + 267379^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12121200000001) 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, 178252941143 + ... + 178252941210.

Almost surely, 2^{12121200000002} is an apocalyptic number.

12121200000002 is a deficient number, since it is larger than the sum of its proper divisors (7130117647114).

12121200000002 is a wasteful number, since it uses less digits than its factorization.

12121200000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356505882372.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12121200000002 its reverse (20000000212121), we get a palindrome (32121200212123).

It can be divided in two parts, 12121 and 200000002, that multiplied together give a palindrome (2424200024242).

The spelling of 12121200000002 in words is "twelve trillion, one hundred twenty-one billion, two hundred million, two", and thus it is an aban number.