12222001111 has 4 divisors (see below), whose sum is σ = 12223139752. Its totient is φ = 12220862472.

The previous prime is 12222001091. The next prime is 12222001163. The reversal of 12222001111 is 11110022221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11110022221 = 51047 ⋅217643.

It is a cyclic number.

It is not a de Polignac number, because 12222001111 - 2²³ = 12213612503 is a prime.

It is a super-2 number, since 2×12222001111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12222001091 and 12222001100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222001711) 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, 553065 + ... + 574738.

It is an arithmetic number, because the mean of its divisors is an integer number (3055784938).

Almost surely, 2^12222001111 is an apocalyptic number.

12222001111 is a deficient number, since it is larger than the sum of its proper divisors (1138641).

12222001111 is a wasteful number, since it uses less digits than its factorization.

12222001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138640.

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

Adding to 12222001111 its reverse (11110022221), we get a palindrome (23332023332).

The spelling of 12222001111 in words is "twelve billion, two hundred twenty-two million, one thousand, one hundred eleven".