1220503606 has 8 divisors (see below), whose sum is σ = 2092291920. Its totient is φ = 523072968.

The previous prime is 1220503523. The next prime is 1220503619. The reversal of 1220503606 is 6063050221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43589401 + ... + 43589428.

It is an arithmetic number, because the mean of its divisors is an integer number (261536490).

Almost surely, 2^1220503606 is an apocalyptic number.

1220503606 is a deficient number, since it is larger than the sum of its proper divisors (871788314).

1220503606 is an equidigital number, since it uses as much as digits as its factorization.

1220503606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87178838.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1220503606 is about 34935.7067482540. The cubic root of 1220503606 is about 1068.6767366944.

Adding to 1220503606 its reverse (6063050221), we get a palindrome (7283553827).

The spelling of 1220503606 in words is "one billion, two hundred twenty million, five hundred three thousand, six hundred six".