12002012100121 has 4 divisors (see below), whose sum is σ = 12153936304000. Its totient is φ = 11850087896244.

The previous prime is 12002012100083. The next prime is 12002012100139. The reversal of 12002012100121 is 12100121020021.

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 12002012100121 - 2⁷ = 12002012099993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12002012100151) 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, 75962101821 + ... + 75962101978.

It is an arithmetic number, because the mean of its divisors is an integer number (3038484076000).

Almost surely, 2^{12002012100121} is an apocalyptic number.

It is an amenable number.

12002012100121 is a deficient number, since it is larger than the sum of its proper divisors (151924203879).

12002012100121 is an equidigital number, since it uses as much as digits as its factorization.

12002012100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151924203878.

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

Adding to 12002012100121 its reverse (12100121020021), we get a palindrome (24102133120142).

The spelling of 12002012100121 in words is "twelve trillion, two billion, twelve million, one hundred thousand, one hundred twenty-one".