12121000000201 has 8 divisors (see below), whose sum is σ = 12137780383424. Its totient is φ = 12104220283920.

The previous prime is 12121000000199. The next prime is 12121000000231. The reversal of 12121000000201 is 10200000012121.

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 12121000000201 - 2¹ = 12121000000199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121000000231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44438500 + ... + 44710426.

It is an arithmetic number, because the mean of its divisors is an integer number (1517222547928).

Almost surely, 2^{12121000000201} is an apocalyptic number.

It is an amenable number.

12121000000201 is a deficient number, since it is larger than the sum of its proper divisors (16780383223).

12121000000201 is an equidigital number, since it uses as much as digits as its factorization.

12121000000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333471.

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

Adding to 12121000000201 its reverse (10200000012121), we get a palindrome (22321000012322).

The spelling of 12121000000201 in words is "twelve trillion, one hundred twenty-one billion, two hundred one", and thus it is an aban number.