12220503 has 4 divisors (see below), whose sum is σ = 16294008. Its totient is φ = 8147000.

The previous prime is 12220489. The next prime is 12220519. The reversal of 12220503 is 30502221.

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 12220503 - 2¹³ = 12212311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220543) 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, 2036748 + ... + 2036753.

It is an arithmetic number, because the mean of its divisors is an integer number (4073502).

Almost surely, 2^12220503 is an apocalyptic number.

12220503 is a deficient number, since it is larger than the sum of its proper divisors (4073505).

12220503 is an equidigital number, since it uses as much as digits as its factorization.

12220503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073504.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 12220503 is about 3495.7836031425. The cubic root of 12220503 is about 230.3366399910.

Adding to 12220503 its reverse (30502221), we get a palindrome (42722724).

The spelling of 12220503 in words is "twelve million, two hundred twenty thousand, five hundred three".