12021333210121 has 4 divisors (see below), whose sum is σ = 12024147855744. Its totient is φ = 12018518564500.

The previous prime is 12021333210097. The next prime is 12021333210137. The reversal of 12021333210121 is 12101233312021.

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 a de Polignac number, because none of the positive numbers 2^k-12021333210121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12021333210092 and 12021333210101.

It is not an unprimeable number, because it can be changed into a prime (12021333310121) 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, 1407316405 + ... + 1407324946.

It is an arithmetic number, because the mean of its divisors is an integer number (3006036963936).

Almost surely, 2^{12021333210121} is an apocalyptic number.

It is an amenable number.

12021333210121 is a deficient number, since it is larger than the sum of its proper divisors (2814645623).

12021333210121 is an equidigital number, since it uses as much as digits as its factorization.

12021333210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814645622.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12021333210121 its reverse (12101233312021), we get a palindrome (24122566522142).

The spelling of 12021333210121 in words is "twelve trillion, twenty-one billion, three hundred thirty-three million, two hundred ten thousand, one hundred twenty-one".