22220112001 has 4 divisors (see below), whose sum is σ = 23389591600. Its totient is φ = 21050632404.

The previous prime is 22220111989. The next prime is 22220112007. The reversal of 22220112001 is 10021102222.

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 22220112001 - 2²⁷ = 22085894273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220112007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584739771 + ... + 584739808.

It is an arithmetic number, because the mean of its divisors is an integer number (5847397900).

Almost surely, 2^22220112001 is an apocalyptic number.

It is an amenable number.

22220112001 is a deficient number, since it is larger than the sum of its proper divisors (1169479599).

22220112001 is a wasteful number, since it uses less digits than its factorization.

22220112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169479598.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22220112001 its reverse (10021102222), we get a palindrome (32241214223).

The spelling of 22220112001 in words is "twenty-two billion, two hundred twenty million, one hundred twelve thousand, one".