2245221 has 12 divisors (see below), whose sum is σ = 3538080. Its totient is φ = 1360680.

The previous prime is 2245189. The next prime is 2245223. The reversal of 2245221 is 1225422.

It is not a de Polignac number, because 2245221 - 2⁵ = 2245189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2245194 and 2245203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245223) 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, 11241 + ... + 11438.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

2^2245221 is an apocalyptic number.

It is an amenable number.

2245221 is a deficient number, since it is larger than the sum of its proper divisors (1292859).

2245221 is a wasteful number, since it uses less digits than its factorization.

2245221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22696 (or 22693 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 2245221 is about 1498.4061532175. The cubic root of 2245221 is about 130.9442297033.

It can be divided in two parts, 224 and 5221, that added together give a palindrome (5445).

The spelling of 2245221 in words is "two million, two hundred forty-five thousand, two hundred twenty-one".