2221415 has 12 divisors (see below), whose sum is σ = 3101256. Its totient is φ = 1523088.

The previous prime is 2221411. The next prime is 2221433. The reversal of 2221415 is 5141222.

2221415 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221415 - 2² = 2221411 is a prime.

It is a d-powerful number, because it can be written as 2¹⁰ + 2¹² + 2¹⁸ + 1 + 4⁵ + 1 + 5⁹ .

It is a Duffinian number.

2221415 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 2221393 and 2221402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4289 + ... + 4778.

It is an arithmetic number, because the mean of its divisors is an integer number (258438).

2^2221415 is an apocalyptic number.

2221415 is a deficient number, since it is larger than the sum of its proper divisors (879841).

2221415 is an equidigital number, since it uses as much as digits as its factorization.

2221415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9086 (or 9079 counting only the distinct ones).

The product of its digits is 160, while the sum is 17.

The square root of 2221415 is about 1490.4412098436. The cubic root of 2221415 is about 130.4797852846.

Adding to 2221415 its reverse (5141222), we get a palindrome (7362637).

The spelling of 2221415 in words is "two million, two hundred twenty-one thousand, four hundred fifteen".