12201021333121 has 4 divisors (see below), whose sum is σ = 12244134482992. Its totient is φ = 12157908183252.

The previous prime is 12201021333103. The next prime is 12201021333133. The reversal of 12201021333121 is 12133312010221.

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 12201021333121 - 2⁹ = 12201021332609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201021333092 and 12201021333101.

It is not an unprimeable number, because it can be changed into a prime (12201321333121) 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, 21556574511 + ... + 21556575076.

It is an arithmetic number, because the mean of its divisors is an integer number (3061033620748).

Almost surely, 2^{12201021333121} is an apocalyptic number.

It is an amenable number.

12201021333121 is a deficient number, since it is larger than the sum of its proper divisors (43113149871).

12201021333121 is an equidigital number, since it uses as much as digits as its factorization.

12201021333121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43113149870.

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

Adding to 12201021333121 its reverse (12133312010221), we get a palindrome (24334333343342).

The spelling of 12201021333121 in words is "twelve trillion, two hundred one billion, twenty-one million, three hundred thirty-three thousand, one hundred twenty-one".