2222247 has 4 divisors (see below), whose sum is σ = 2963000. Its totient is φ = 1481496.

The previous prime is 2222243. The next prime is 2222249. The reversal of 2222247 is 7422222.

2222247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2222247 - 2² = 2222243 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370372 + ... + 370377.

It is an arithmetic number, because the mean of its divisors is an integer number (740750).

2^2222247 is an apocalyptic number.

2222247 is a deficient number, since it is larger than the sum of its proper divisors (740753).

2222247 is an equidigital number, since it uses as much as digits as its factorization.

2222247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740752.

The product of its digits is 896, while the sum is 21.

The square root of 2222247 is about 1490.7202956960. The cubic root of 2222247 is about 130.4960730458.

Adding to 2222247 its reverse (7422222), we get a palindrome (9644469).

The spelling of 2222247 in words is "two million, two hundred twenty-two thousand, two hundred forty-seven".