1220203325 has 36 divisors (see below), whose sum is σ = 1672288800. Its totient is φ = 882525600.

The previous prime is 1220203297. The next prime is 1220203349. The reversal of 1220203325 is 5233020221.

It is not a de Polignac number, because 1220203325 - 2¹⁴ = 1220186941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220203297 and 1220203306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 600962 + ... + 602988.

Almost surely, 2^1220203325 is an apocalyptic number.

It is an amenable number.

1220203325 is a deficient number, since it is larger than the sum of its proper divisors (452085475).

1220203325 is a wasteful number, since it uses less digits than its factorization.

1220203325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258 (or 2242 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1220203325 is about 34931.4088607946. The cubic root of 1220203325 is about 1068.5890871814.

Adding to 1220203325 its reverse (5233020221), we get a palindrome (6453223546).

The spelling of 1220203325 in words is "one billion, two hundred twenty million, two hundred three thousand, three hundred twenty-five".