22201220111 has 32 divisors (see below), whose sum is σ = 27120614400. Its totient is φ = 17750396160.

The previous prime is 22201220089. The next prime is 22201220123. The reversal of 22201220111 is 11102210222.

It is not a de Polignac number, because 22201220111 - 2¹⁰ = 22201219087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201220131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11604491 + ... + 11606403.

It is an arithmetic number, because the mean of its divisors is an integer number (847519200).

Almost surely, 2^22201220111 is an apocalyptic number.

22201220111 is a deficient number, since it is larger than the sum of its proper divisors (4919394289).

22201220111 is a wasteful number, since it uses less digits than its factorization.

22201220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22201220111 its reverse (11102210222), we get a palindrome (33303430333).

The spelling of 22201220111 in words is "twenty-two billion, two hundred one million, two hundred twenty thousand, one hundred eleven".