12002101021121 has 4 divisors (see below), whose sum is σ = 12054973713072. Its totient is φ = 11949228329172.

The previous prime is 12002101021103. The next prime is 12002101021129. The reversal of 12002101021121 is 12112010120021.

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 12002101021121 - 2³⁴ = 11984921151937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12002101021096 and 12002101021105.

It is not an unprimeable number, because it can be changed into a prime (12002101021129) 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, 26436345635 + ... + 26436346088.

It is an arithmetic number, because the mean of its divisors is an integer number (3013743428268).

Almost surely, 2^{12002101021121} is an apocalyptic number.

It is an amenable number.

12002101021121 is a deficient number, since it is larger than the sum of its proper divisors (52872691951).

12002101021121 is an equidigital number, since it uses as much as digits as its factorization.

12002101021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52872691950.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12002101021121 its reverse (12112010120021), we get a palindrome (24114111141142).

The spelling of 12002101021121 in words is "twelve trillion, two billion, one hundred one million, twenty-one thousand, one hundred twenty-one".