2221310 has 32 divisors (see below), whose sum is σ = 4923072. Its totient is φ = 702720.

The previous prime is 2221301. The next prime is 2221321. The reversal of 2221310 is 131222.

It is a happy number.

It is a super-2 number, since 2×2221310² = 9868436232200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2221291 and 2221300.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 311 + ... + 2130.

It is an arithmetic number, because the mean of its divisors is an integer number (153846).

2^2221310 is an apocalyptic number.

2221310 is an abundant number, since it is smaller than the sum of its proper divisors (2701762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221310 is a wasteful number, since it uses less digits than its factorization.

2221310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2221310 is about 1490.4059849585. The cubic root of 2221310 is about 130.4777294488.

Adding to 2221310 its reverse (131222), we get a palindrome (2352532).

The spelling of 2221310 in words is "two million, two hundred twenty-one thousand, three hundred ten".