10066200221 has 16 divisors (see below), whose sum is σ = 12595401600. Its totient is φ = 7815458880.

The previous prime is 10066200203. The next prime is 10066200227. The reversal of 10066200221 is 12200266001.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10066200221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10066200193 and 10066200202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10066200227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214646 + ... + 257303.

It is an arithmetic number, because the mean of its divisors is an integer number (787212600).

Almost surely, 2^10066200221 is an apocalyptic number.

10066200221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10066200221 is a deficient number, since it is larger than the sum of its proper divisors (2529201379).

10066200221 is a wasteful number, since it uses less digits than its factorization.

10066200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472244.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10066200221 its reverse (12200266001), we get a palindrome (22266466222).

The spelling of 10066200221 in words is "ten billion, sixty-six million, two hundred thousand, two hundred twenty-one".