2254221 has 18 divisors (see below), whose sum is σ = 3359850. Its totient is φ = 1456320.

The previous prime is 2254211. The next prime is 2254223. The reversal of 2254221 is 1224522.

It can be written as a sum of positive squares in 3 ways, for example, as 324900 + 1929321 = 570^2 + 1389^2 .

It is not a de Polignac number, because 2254221 - 2⁶ = 2254157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2254194 and 2254203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2254223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15055 + ... + 15203.

2^2254221 is an apocalyptic number.

It is an amenable number.

2254221 is a deficient number, since it is larger than the sum of its proper divisors (1105629).

2254221 is a wasteful number, since it uses less digits than its factorization.

2254221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 193 counting only the distinct ones).

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

The square root of 2254221 is about 1501.4063407352. The cubic root of 2254221 is about 131.1189603704.

Adding to 2254221 its reverse (1224522), we get a palindrome (3478743).

The spelling of 2254221 in words is "two million, two hundred fifty-four thousand, two hundred twenty-one".