12121200001 has 8 divisors (see below), whose sum is σ = 12238685280. Its totient is φ = 12003792768.

The previous prime is 12121199999. The next prime is 12121200023. The reversal of 12121200001 is 10000212121.

12121200001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12121200001 - 2¹ = 12121199999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121200401) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 321210 + ... + 356956.

It is an arithmetic number, because the mean of its divisors is an integer number (1529835660).

Almost surely, 2^12121200001 is an apocalyptic number.

It is an amenable number.

12121200001 is a deficient number, since it is larger than the sum of its proper divisors (117485279).

12121200001 is a wasteful number, since it uses less digits than its factorization.

12121200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39023.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12121200001 its reverse (10000212121), we get a palindrome (22121412122).

The spelling of 12121200001 in words is "twelve billion, one hundred twenty-one million, two hundred thousand, one".