1203221125 has 16 divisors (see below), whose sum is σ = 1505977200. Its totient is φ = 959784000.

The previous prime is 1203221111. The next prime is 1203221183. The reversal of 1203221125 is 5211223021.

It can be written as a sum of positive squares in 8 ways, for example, as 17589636 + 1185631489 = 4194^2 + 34433^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1203221125 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 29835 + ... + 57415.

It is an arithmetic number, because the mean of its divisors is an integer number (94123575).

Almost surely, 2^1203221125 is an apocalyptic number.

It is an amenable number.

1203221125 is a deficient number, since it is larger than the sum of its proper divisors (302756075).

1203221125 is an equidigital number, since it uses as much as digits as its factorization.

1203221125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27945 (or 27935 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1203221125 is about 34687.4779279209. The cubic root of 1203221125 is about 1063.6085408296.

Adding to 1203221125 its reverse (5211223021), we get a palindrome (6414444146).

The spelling of 1203221125 in words is "one billion, two hundred three million, two hundred twenty-one thousand, one hundred twenty-five".