1122245225 has 12 divisors (see below), whose sum is σ = 1473442524. Its totient is φ = 844984320.

The previous prime is 1122245221. The next prime is 1122245231. The reversal of 1122245225 is 5225422211.

It can be written as a sum of positive squares in 6 ways, for example, as 17081689 + 1105163536 = 4133^2 + 33244^2 .

It is not a de Polignac number, because 1122245225 - 2² = 1122245221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122245194 and 1122245203.

It is not an unprimeable number, because it can be changed into a prime (1122245221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1319864 + ... + 1320713.

It is an arithmetic number, because the mean of its divisors is an integer number (122786877).

Almost surely, 2^1122245225 is an apocalyptic number.

It is an amenable number.

1122245225 is a deficient number, since it is larger than the sum of its proper divisors (351197299).

1122245225 is a wasteful number, since it uses less digits than its factorization.

1122245225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640604 (or 2640599 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 1122245225 is about 33499.9287312675. The cubic root of 1122245225 is about 1039.1923046496.

Adding to 1122245225 its reverse (5225422211), we get a palindrome (6347667436).

The spelling of 1122245225 in words is "one billion, one hundred twenty-two million, two hundred forty-five thousand, two hundred twenty-five".