20622203 has 4 divisors (see below), whose sum is σ = 23568240. Its totient is φ = 17676168.

The previous prime is 20622197. The next prime is 20622229. The reversal of 20622203 is 30222602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20622203 - 2⁸ = 20621947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20622233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1473008 + ... + 1473021.

It is an arithmetic number, because the mean of its divisors is an integer number (5892060).

Almost surely, 2^20622203 is an apocalyptic number.

20622203 is a deficient number, since it is larger than the sum of its proper divisors (2946037).

20622203 is an equidigital number, since it uses as much as digits as its factorization.

20622203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946036.

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

The square root of 20622203 is about 4541.1675811403. The cubic root of 20622203 is about 274.2279302904.

Adding to 20622203 its reverse (30222602), we get a palindrome (50844805).

The spelling of 20622203 in words is "twenty million, six hundred twenty-two thousand, two hundred three".