12201120112021 has 4 divisors (see below), whose sum is σ = 12201134684544. Its totient is φ = 12201105539500.

The previous prime is 12201120112009. The next prime is 12201120112057. The reversal of 12201120112021 is 12021102110221.

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 12201120112021 - 2⁷ = 12201120111893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201120111986 and 12201120112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201120112001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5948485 + ... + 7732186.

It is an arithmetic number, because the mean of its divisors is an integer number (3050283671136).

Almost surely, 2^{12201120112021} is an apocalyptic number.

It is an amenable number.

12201120112021 is a deficient number, since it is larger than the sum of its proper divisors (14572523).

12201120112021 is an equidigital number, since it uses as much as digits as its factorization.

12201120112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14572522.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12201120112021 its reverse (12021102110221), we get a palindrome (24222222222242).

The spelling of 12201120112021 in words is "twelve trillion, two hundred one billion, one hundred twenty million, one hundred twelve thousand, twenty-one".