22221032111 has 2 divisors, whose sum is σ = 22221032112. Its totient is φ = 22221032110.

The previous prime is 22221032077. The next prime is 22221032137. The reversal of 22221032111 is 11123012222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22221032111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22221032111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221052111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110516055 + 11110516056.

It is an arithmetic number, because the mean of its divisors is an integer number (11110516056).

Almost surely, 2^22221032111 is an apocalyptic number.

22221032111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221032111 is an equidigital number, since it uses as much as digits as its factorization.

22221032111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22221032111 its reverse (11123012222), we get a palindrome (33344044333).

The spelling of 22221032111 in words is "twenty-two billion, two hundred twenty-one million, thirty-two thousand, one hundred eleven".