1223112245 has 8 divisors (see below), whose sum is σ = 1468312920. Its totient is φ = 978104320.

The previous prime is 1223112221. The next prime is 1223112257. The reversal of 1223112245 is 5422113221.

It can be written as a sum of positive squares in 4 ways, for example, as 3845521 + 1219266724 = 1961^2 + 34918^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1223112245 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223112245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33836 + ... + 59925.

It is an arithmetic number, because the mean of its divisors is an integer number (183539115).

Almost surely, 2^1223112245 is an apocalyptic number.

It is an amenable number.

1223112245 is a deficient number, since it is larger than the sum of its proper divisors (245200675).

1223112245 is an equidigital number, since it uses as much as digits as its factorization.

1223112245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96375.

The product of its digits is 960, while the sum is 23.

The square root of 1223112245 is about 34973.0216738560. The cubic root of 1223112245 is about 1069.4375723572.

Adding to 1223112245 its reverse (5422113221), we get a palindrome (6645225466).

The spelling of 1223112245 in words is "one billion, two hundred twenty-three million, one hundred twelve thousand, two hundred forty-five".