2221000010 has 16 divisors (see below), whose sum is σ = 4015261800. Its totient is φ = 884519616.

The previous prime is 2220999997. The next prime is 2221000043. The reversal of 2221000010 is 100001222.

It can be written as a sum of positive squares in 4 ways, for example, as 2163831289 + 57168721 = 46517^2 + 7561^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482645 + ... + 487224.

Almost surely, 2^2221000010 is an apocalyptic number.

2221000010 is a deficient number, since it is larger than the sum of its proper divisors (1794261790).

2221000010 is a wasteful number, since it uses less digits than its factorization.

2221000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970105.

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

The square root of 2221000010 is about 47127.4867778879. The cubic root of 2221000010 is about 1304.7165965619.

Adding to 2221000010 its reverse (100001222), we get a palindrome (2321001232).

The spelling of 2221000010 in words is "two billion, two hundred twenty-one million, ten", and thus it is an aban number.