12112020221 has 8 divisors (see below), whose sum is σ = 13881974400. Its totient is φ = 10351982448.

The previous prime is 12112020211. The next prime is 12112020301. The reversal of 12112020221 is 12202021121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12112020221 - 2¹⁰ = 12112019197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12112020196 and 12112020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112020211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2476481 + ... + 2481366.

It is an arithmetic number, because the mean of its divisors is an integer number (1735246800).

Almost surely, 2^12112020221 is an apocalyptic number.

It is an amenable number.

12112020221 is a deficient number, since it is larger than the sum of its proper divisors (1769954179).

12112020221 is an equidigital number, since it uses as much as digits as its factorization.

12112020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4958203.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12112020221 its reverse (12202021121), we get a palindrome (24314041342).

The spelling of 12112020221 in words is "twelve billion, one hundred twelve million, twenty thousand, two hundred twenty-one".