2221111005 has 16 divisors (see below), whose sum is σ = 3560103360. Its totient is φ = 1182483968.

The previous prime is 2221110973. The next prime is 2221111019. The reversal of 2221111005 is 5001111222.

It is a cyclic number.

It is not a de Polignac number, because 2221111005 - 2⁵ = 2221110973 is a prime.

It is a super-2 number, since 2×2221111005² = 9866668193064220050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 123060 + ... + 139949.

It is an arithmetic number, because the mean of its divisors is an integer number (222506460).

Almost surely, 2^2221111005 is an apocalyptic number.

It is an amenable number.

2221111005 is a deficient number, since it is larger than the sum of its proper divisors (1338992355).

2221111005 is a wasteful number, since it uses less digits than its factorization.

2221111005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263580.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 2221111005 is about 47128.6643668161. The cubic root of 2221111005 is about 1304.7383307066.

Adding to 2221111005 its reverse (5001111222), we get a palindrome (7222222227).

The spelling of 2221111005 in words is "two billion, two hundred twenty-one million, one hundred eleven thousand, five".