22201122111 has 16 divisors (see below), whose sum is σ = 33844495104. Its totient is φ = 12681025344.

The previous prime is 22201122107. The next prime is 22201122121. The reversal of 22201122111 is 11122110222.

It is not a de Polignac number, because 22201122111 - 2² = 22201122107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201122121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170641 + ... + 271146.

It is an arithmetic number, because the mean of its divisors is an integer number (2115280944).

Almost surely, 2^22201122111 is an apocalyptic number.

22201122111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22201122111 is a deficient number, since it is larger than the sum of its proper divisors (11643372993).

22201122111 is a wasteful number, since it uses less digits than its factorization.

22201122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444190.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22201122111 its reverse (11122110222), we get a palindrome (33323232333).

The spelling of 22201122111 in words is "twenty-two billion, two hundred one million, one hundred twenty-two thousand, one hundred eleven".