12012002121201 has 4 divisors (see below), whose sum is σ = 16016002828272. Its totient is φ = 8008001414132.

The previous prime is 12012002121191. The next prime is 12012002121253. The reversal of 12012002121201 is 10212120021021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12012002121201 - 2²² = 12011997926897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12012002121281) 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, 2002000353531 + ... + 2002000353536.

It is an arithmetic number, because the mean of its divisors is an integer number (4004000707068).

Almost surely, 2^{12012002121201} is an apocalyptic number.

It is an amenable number.

12012002121201 is a deficient number, since it is larger than the sum of its proper divisors (4004000707071).

12012002121201 is an equidigital number, since it uses as much as digits as its factorization.

12012002121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004000707070.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12012002121201 its reverse (10212120021021), we get a palindrome (22224122142222).

The spelling of 12012002121201 in words is "twelve trillion, twelve billion, two million, one hundred twenty-one thousand, two hundred one".