2221106305 has 16 divisors (see below), whose sum is σ = 2975252544. Its totient is φ = 1577782080.

The previous prime is 2221106269. The next prime is 2221106341. The reversal of 2221106305 is 5036011222.

It is an interprime number because it is at equal distance from previous prime (2221106269) and next prime (2221106341).

It is not a de Polignac number, because 2221106305 - 2⁹ = 2221105793 is a prime.

It is a super-2 number, since 2×2221106305² = 9866626436221506050, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 467214 + ... + 471943.

It is an arithmetic number, because the mean of its divisors is an integer number (185953284).

Almost surely, 2^2221106305 is an apocalyptic number.

It is an amenable number.

2221106305 is a deficient number, since it is larger than the sum of its proper divisors (754146239).

2221106305 is a wasteful number, since it uses less digits than its factorization.

2221106305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939216.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2221106305 is about 47128.6145032930. The cubic root of 2221106305 is about 1304.7374104052.

Adding to 2221106305 its reverse (5036011222), we get a palindrome (7257117527).

The spelling of 2221106305 in words is "two billion, two hundred twenty-one million, one hundred six thousand, three hundred five".