22220603 has 2 divisors, whose sum is σ = 22220604. Its totient is φ = 22220602.

The previous prime is 22220537. The next prime is 22220623. The reversal of 22220603 is 30602222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22220603 - 2¹² = 22216507 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22220623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110301 + 11110302.

It is an arithmetic number, because the mean of its divisors is an integer number (11110302).

Almost surely, 2^22220603 is an apocalyptic number.

22220603 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220603 is an equidigital number, since it uses as much as digits as its factorization.

22220603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22220603 is about 4713.8734603296. The cubic root of 22220603 is about 281.1373930768.

Adding to 22220603 its reverse (30602222), we get a palindrome (52822825).

The spelling of 22220603 in words is "twenty-two million, two hundred twenty thousand, six hundred three".