12112112200221 has 24 divisors (see below), whose sum is σ = 19090638182304. Its totient is φ = 7338794974560.

The previous prime is 12112112200219. The next prime is 12112112200231. The reversal of 12112112200221 is 12200221121121.

12112112200221 is a `hidden beast` number, since 1 + 2 + 11 + 211 + 220 + 0 + 221 = 666.

It is not a de Polignac number, because 12112112200221 - 2¹ = 12112112200219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12112112200194 and 12112112200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112112200231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15270306 + ... + 16043891.

It is an arithmetic number, because the mean of its divisors is an integer number (795443257596).

Almost surely, 2^{12112112200221} is an apocalyptic number.

12112112200221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12112112200221 is a deficient number, since it is larger than the sum of its proper divisors (6978525982083).

12112112200221 is a wasteful number, since it uses less digits than its factorization.

12112112200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31318121 (or 31318118 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12112112200221 its reverse (12200221121121), we get a palindrome (24312333321342).

The spelling of 12112112200221 in words is "twelve trillion, one hundred twelve billion, one hundred twelve million, two hundred thousand, two hundred twenty-one".