1222603 has 2 divisors, whose sum is σ = 1222604. Its totient is φ = 1222602.

The previous prime is 1222601. The next prime is 1222633. The reversal of 1222603 is 3062221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222603 - 2¹ = 1222601 is a prime.

Together with 1222601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1222601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611301 + 611302.

It is an arithmetic number, because the mean of its divisors is an integer number (611302).

2^1222603 is an apocalyptic number.

1222603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222603 is an equidigital number, since it uses as much as digits as its factorization.

1222603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1222603 is about 1105.7137966038. The cubic root of 1222603 is about 106.9289130997.

Adding to 1222603 its reverse (3062221), we get a palindrome (4284824).

The spelling of 1222603 in words is "one million, two hundred twenty-two thousand, six hundred three".