12121201000012 has 12 divisors (see below), whose sum is σ = 22843801884736. Its totient is φ = 5594400461520.

The previous prime is 12121201000009. The next prime is 12121201000019. The reversal of 12121201000012 is 21000010212121.

12121201000012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 12121200999956 and 12121201000001.

It is not an unprimeable number, because it can be changed into a prime (12121201000019) 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, 116550009564 + ... + 116550009667.

Almost surely, 2^{12121201000012} is an apocalyptic number.

It is an amenable number.

12121201000012 is a deficient number, since it is larger than the sum of its proper divisors (10722600884724).

12121201000012 is a wasteful number, since it uses less digits than its factorization.

12121201000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233100019248 (or 233100019246 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12121201000012 its reverse (21000010212121), we get a palindrome (33121211212133).

The spelling of 12121201000012 in words is "twelve trillion, one hundred twenty-one billion, two hundred one million, twelve", and thus it is an aban number.