22111111201 has 4 divisors (see below), whose sum is σ = 22172702400. Its totient is φ = 22049520004.

The previous prime is 22111111159. The next prime is 22111111247. The reversal of 22111111201 is 10211111122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22111111201 - 2⁷ = 22111111073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111111901) 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, 30795061 + ... + 30795778.

It is an arithmetic number, because the mean of its divisors is an integer number (5543175600).

Almost surely, 2^22111111201 is an apocalyptic number.

It is an amenable number.

22111111201 is a deficient number, since it is larger than the sum of its proper divisors (61591199).

22111111201 is an equidigital number, since it uses as much as digits as its factorization.

22111111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61591198.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 22111111201 its reverse (10211111122), we get a palindrome (32322222323).

The spelling of 22111111201 in words is "twenty-two billion, one hundred eleven million, one hundred eleven thousand, two hundred one".