12012000102021 has 4 divisors (see below), whose sum is σ = 16016000136032. Its totient is φ = 8008000068012.

The previous prime is 12012000102013. The next prime is 12012000102031. The reversal of 12012000102021 is 12020100021021.

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 not a de Polignac number, because 12012000102021 - 2³ = 12012000102013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012000101988 and 12012000102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012000102031) 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, 2002000017001 + ... + 2002000017006.

It is an arithmetic number, because the mean of its divisors is an integer number (4004000034008).

Almost surely, 2^{12012000102021} is an apocalyptic number.

It is an amenable number.

12012000102021 is a deficient number, since it is larger than the sum of its proper divisors (4004000034011).

12012000102021 is an equidigital number, since it uses as much as digits as its factorization.

12012000102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004000034010.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12012000102021 its reverse (12020100021021), we get a palindrome (24032100123042).

The spelling of 12012000102021 in words is "twelve trillion, twelve billion, one hundred two thousand, twenty-one".