10012000221 has 48 divisors (see below), whose sum is σ = 15290795520. Its totient is φ = 6544689840.

The previous prime is 10012000189. The next prime is 10012000253. The reversal of 10012000221 is 12200021001.

It is an interprime number because it is at equal distance from previous prime (10012000189) and next prime (10012000253).

It is not a de Polignac number, because 10012000221 - 2⁵ = 10012000189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012000261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8185816 + ... + 8187038.

It is an arithmetic number, because the mean of its divisors is an integer number (318558240).

Almost surely, 2^10012000221 is an apocalyptic number.

It is an amenable number.

10012000221 is a deficient number, since it is larger than the sum of its proper divisors (5278795299).

10012000221 is an equidigital number, since it uses as much as digits as its factorization.

10012000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868 (or 1856 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10012000221 its reverse (12200021001), we get a palindrome (22212021222).

The spelling of 10012000221 in words is "ten billion, twelve million, two hundred twenty-one", and thus it is an aban number.