2221001210 has 48 divisors (see below), whose sum is σ = 4425190056. Its totient is φ = 799755264.

The previous prime is 2221001207. The next prime is 2221001243. The reversal of 2221001210 is 121001222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2216620561 + 4380649 = 47081^2 + 2093^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2221001191 and 2221001200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77582 + ... + 102278.

Almost surely, 2^2221001210 is an apocalyptic number.

2221001210 is a deficient number, since it is larger than the sum of its proper divisors (2204188846).

2221001210 is a wasteful number, since it uses less digits than its factorization.

2221001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24767 (or 24744 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2221001210 is about 47127.4995093098. The cubic root of 2221001210 is about 1304.7168315401.

Adding to 2221001210 its reverse (121001222), we get a palindrome (2342002432).

The spelling of 2221001210 in words is "two billion, two hundred twenty-one million, one thousand, two hundred ten".