12220111201 has 4 divisors (see below), whose sum is σ = 12328253892. Its totient is φ = 12111968512.

The previous prime is 12220111153. The next prime is 12220111243. The reversal of 12220111201 is 10211102221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10211102221 = 661 ⋅15447961.

It can be written as a sum of positive squares in 2 ways, for example, as 1153281600 + 11066829601 = 33960^2 + 105199^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220111201 - 2¹³ = 12220103009 is a prime.

It is a super-2 number, since 2×12220111201² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220117201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54071176 + ... + 54071401.

It is an arithmetic number, because the mean of its divisors is an integer number (3082063473).

Almost surely, 2^12220111201 is an apocalyptic number.

It is an amenable number.

12220111201 is a deficient number, since it is larger than the sum of its proper divisors (108142691).

12220111201 is a wasteful number, since it uses less digits than its factorization.

12220111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108142690.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12220111201 its reverse (10211102221), we get a palindrome (22431213422).

The spelling of 12220111201 in words is "twelve billion, two hundred twenty million, one hundred eleven thousand, two hundred one".