1000010221 has 8 divisors (see below), whose sum is σ = 1158966144. Its totient is φ = 845078640.

The previous prime is 1000010197. The next prime is 1000010233. The reversal of 1000010221 is 1220100001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1000010221 - 2⁵ = 1000010189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000010251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005550 + ... + 1006543.

It is an arithmetic number, because the mean of its divisors is an integer number (144870768).

Almost surely, 2^1000010221 is an apocalyptic number.

It is an amenable number.

1000010221 is a deficient number, since it is larger than the sum of its proper divisors (158955923).

1000010221 is an equidigital number, since it uses as much as digits as its factorization.

1000010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012171.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1000010221 is about 31622.9382094707. The cubic root of 1000010221 is about 1000.0034069884.

Adding to 1000010221 its reverse (1220100001), we get a palindrome (2220110222).

The spelling of 1000010221 in words is "one billion, ten thousand, two hundred twenty-one".