10210000221 has 48 divisors (see below), whose sum is σ = 15181391680. Its totient is φ = 6610222080.

The previous prime is 10210000201. The next prime is 10210000231. The reversal of 10210000221 is 12200001201.

It is not a de Polignac number, because 10210000221 - 2⁷ = 10210000093 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210000201) 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, 15170541 + ... + 15171213.

Almost surely, 2^10210000221 is an apocalyptic number.

It is an amenable number.

10210000221 is a deficient number, since it is larger than the sum of its proper divisors (4971391459).

10210000221 is a wasteful number, since it uses less digits than its factorization.

10210000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1063 counting only the distinct ones).

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

Adding to 10210000221 its reverse (12200001201), we get a palindrome (22410001422).

The spelling of 10210000221 in words is "ten billion, two hundred ten million, two hundred twenty-one", and thus it is an aban number.