2301221 has 8 divisors (see below), whose sum is σ = 2492280. Its totient is φ = 2112192.

The previous prime is 2301217. The next prime is 2301227. The reversal of 2301221 is 1221032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 84100 + 2217121 = 290^2 + 1489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2301221 - 2² = 2301217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2591 + ... + 3363.

It is an arithmetic number, because the mean of its divisors is an integer number (311535).

2^2301221 is an apocalyptic number.

It is an amenable number.

2301221 is a deficient number, since it is larger than the sum of its proper divisors (191059).

2301221 is a wasteful number, since it uses less digits than its factorization.

2301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015.

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

The square root of 2301221 is about 1516.9775871779. The cubic root of 2301221 is about 132.0239664166.

Adding to 2301221 its reverse (1221032), we get a palindrome (3522253).

The spelling of 2301221 in words is "two million, three hundred one thousand, two hundred twenty-one".