12221011022111 has 4 divisors (see below), whose sum is σ = 12282423138000. Its totient is φ = 12159598906224.

The previous prime is 12221011022081. The next prime is 12221011022119. The reversal of 12221011022111 is 11122011012221.

12221011022111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12221011022111 - 2²² = 12221006827807 is a prime.

It is a super-2 number, since 2×12221011022111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221011022111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221011022119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30706057646 + ... + 30706058043.

It is an arithmetic number, because the mean of its divisors is an integer number (3070605784500).

Almost surely, 2^{12221011022111} is an apocalyptic number.

12221011022111 is a deficient number, since it is larger than the sum of its proper divisors (61412115889).

12221011022111 is an equidigital number, since it uses as much as digits as its factorization.

12221011022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61412115888.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12221011022111 its reverse (11122011012221), we get a palindrome (23343022034332).

It can be divided in two parts, 122210110 and 22111, that added together give a palindrome (122232221).

The spelling of 12221011022111 in words is "twelve trillion, two hundred twenty-one billion, eleven million, twenty-two thousand, one hundred eleven".