2221403 has 2 divisors, whose sum is σ = 2221404. Its totient is φ = 2221402.

The previous prime is 2221399. The next prime is 2221411. The reversal of 2221403 is 3041222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221403 - 2² = 2221399 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2221433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110701 + 1110702.

It is an arithmetic number, because the mean of its divisors is an integer number (1110702).

2^2221403 is an apocalyptic number.

2221403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221403 is an equidigital number, since it uses as much as digits as its factorization.

2221403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2221403 is about 1490.4371841846. The cubic root of 2221403 is about 130.4795503352.

Adding to 2221403 its reverse (3041222), we get a palindrome (5262625).

The spelling of 2221403 in words is "two million, two hundred twenty-one thousand, four hundred three".