2221000111 has 8 divisors (see below), whose sum is σ = 2430653904. Its totient is φ = 2012637120.

The previous prime is 2221000099. The next prime is 2221000121. The reversal of 2221000111 is 1110001222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221000111 - 2⁷ = 2220999983 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 (2221000121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319096 + ... + 325981.

It is an arithmetic number, because the mean of its divisors is an integer number (303831738).

Almost surely, 2^2221000111 is an apocalyptic number.

2221000111 is a deficient number, since it is larger than the sum of its proper divisors (209653793).

2221000111 is a wasteful number, since it uses less digits than its factorization.

2221000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645401.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2221000111 is about 47127.4878494494. The cubic root of 2221000111 is about 1304.7166163393.

Adding to 2221000111 its reverse (1110001222), we get a palindrome (3331001333).

The spelling of 2221000111 in words is "two billion, two hundred twenty-one million, one hundred eleven", and thus it is an aban number.