22111000001 has 4 divisors (see below), whose sum is σ = 22233160404. Its totient is φ = 21988839600.

The previous prime is 22110999997. The next prime is 22111000007. The reversal of 22111000001 is 10000011122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2169323776 + 19941676225 = 46576^2 + 141215^2 .

It is a cyclic number.

It is not a de Polignac number, because 22111000001 - 2² = 22110999997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111000007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61079930 + ... + 61080291.

It is an arithmetic number, because the mean of its divisors is an integer number (5558290101).

Almost surely, 2^22111000001 is an apocalyptic number.

It is an amenable number.

22111000001 is a deficient number, since it is larger than the sum of its proper divisors (122160403).

22111000001 is a wasteful number, since it uses less digits than its factorization.

22111000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122160402.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 22111000001 its reverse (10000011122), we get a palindrome (32111011123).

The spelling of 22111000001 in words is "twenty-two billion, one hundred eleven million, one", and thus it is an aban number.