12112221021201 has 32 divisors (see below), whose sum is σ = 20553756549120. Its totient is φ = 6905645474832.

The previous prime is 12112221021181. The next prime is 12112221021217. The reversal of 12112221021201 is 10212012221121.

12112221021201 is a `hidden beast` number, since 1 + 211 + 22 + 210 + 21 + 201 = 666.

It is not a de Polignac number, because 12112221021201 - 2⁵ = 12112221021169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12112221071201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72247905 + ... + 72415358.

It is an arithmetic number, because the mean of its divisors is an integer number (642304892160).

Almost surely, 2^{12112221021201} is an apocalyptic number.

It is an amenable number.

12112221021201 is a deficient number, since it is larger than the sum of its proper divisors (8441535527919).

12112221021201 is a wasteful number, since it uses less digits than its factorization.

12112221021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144663722 (or 144663716 counting only the distinct ones).

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

Adding to 12112221021201 its reverse (10212012221121), we get a palindrome (22324233242322).

The spelling of 12112221021201 in words is "twelve trillion, one hundred twelve billion, two hundred twenty-one million, twenty-one thousand, two hundred one".