2221002010 has 16 divisors (see below), whose sum is σ = 3998450376. Its totient is φ = 888257088.

The previous prime is 2221001983. The next prime is 2221002011. The reversal of 2221002010 is 102001222.

It can be written as a sum of positive squares in 4 ways, for example, as 2016997921 + 204004089 = 44911^2 + 14283^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2221002011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65332 + ... + 93328.

Almost surely, 2^2221002010 is an apocalyptic number.

2221002010 is a deficient number, since it is larger than the sum of its proper divisors (1777448366).

2221002010 is a wasteful number, since it uses less digits than its factorization.

2221002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35937.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2221002010 is about 47127.5079969226. The cubic root of 2221002010 is about 1304.7169881922.

Adding to 2221002010 its reverse (102001222), we get a palindrome (2323003232).

The spelling of 2221002010 in words is "two billion, two hundred twenty-one million, two thousand, ten".