10566221205 has 32 divisors (see below), whose sum is σ = 17202585600. Its totient is φ = 5536553792.

The previous prime is 10566221173. The next prime is 10566221213. The reversal of 10566221205 is 50212266501.

It is a cyclic number.

It is not a de Polignac number, because 10566221205 - 2⁵ = 10566221173 is a prime.

It is a super-2 number, since 2×10566221205² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2588356 + ... + 2592434.

It is an arithmetic number, because the mean of its divisors is an integer number (537580800).

Almost surely, 2^10566221205 is an apocalyptic number.

10566221205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10566221205 is a deficient number, since it is larger than the sum of its proper divisors (6636364395).

10566221205 is a wasteful number, since it uses less digits than its factorization.

10566221205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7073.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 10566221205 its reverse (50212266501), we get a palindrome (60778487706).

The spelling of 10566221205 in words is "ten billion, five hundred sixty-six million, two hundred twenty-one thousand, two hundred five".