2382221 has 2 divisors, whose sum is σ = 2382222. Its totient is φ = 2382220.

The previous prime is 2382217. The next prime is 2382251. The reversal of 2382221 is 1222832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1590121 + 792100 = 1261^2 + 890^2 .

It is a cyclic number.

It is not a de Polignac number, because 2382221 - 2² = 2382217 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2382193 and 2382202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2382251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1191110 + 1191111.

It is an arithmetic number, because the mean of its divisors is an integer number (1191111).

2^2382221 is an apocalyptic number.

It is an amenable number.

2382221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2382221 is an equidigital number, since it uses as much as digits as its factorization.

2382221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 20.

The square root of 2382221 is about 1543.4445244323. Note that the first 3 decimals coincide. The cubic root of 2382221 is about 133.5551633700. Note that the first 3 decimals are identical.

The spelling of 2382221 in words is "two million, three hundred eighty-two thousand, two hundred twenty-one".