12012101121201 has 16 divisors (see below), whose sum is σ = 16288410273408. Its totient is φ = 7873023168000.

The previous prime is 12012101121191. The next prime is 12012101121257. The reversal of 12012101121201 is 10212110121021.

It is a happy number.

It is not a de Polignac number, because 12012101121201 - 2⁹ = 12012101120689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12012101121401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136640490 + ... + 136728371.

It is an arithmetic number, because the mean of its divisors is an integer number (1018025642088).

Almost surely, 2^{12012101121201} is an apocalyptic number.

It is an amenable number.

12012101121201 is a deficient number, since it is larger than the sum of its proper divisors (4276309152207).

12012101121201 is a wasteful number, since it uses less digits than its factorization.

12012101121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273369112.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12012101121201 its reverse (10212110121021), we get a palindrome (22224211242222).

The spelling of 12012101121201 in words is "twelve trillion, twelve billion, one hundred one million, one hundred twenty-one thousand, two hundred one".