1220052265 has 8 divisors (see below), whose sum is σ = 1464294600. Its totient is φ = 975887232.

The previous prime is 1220052257. The next prime is 1220052283. The reversal of 1220052265 is 5622500221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5669161 + 1214383104 = 2381^2 + 34848^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1220052265 - 2³ = 1220052257 is a prime.

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, 24397 + ... + 55093.

It is an arithmetic number, because the mean of its divisors is an integer number (183036825).

Almost surely, 2^1220052265 is an apocalyptic number.

It is an amenable number.

1220052265 is a deficient number, since it is larger than the sum of its proper divisors (244242335).

1220052265 is an equidigital number, since it uses as much as digits as its factorization.

1220052265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38651.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1220052265 is about 34929.2465564318. The cubic root of 1220052265 is about 1068.5449885939.

Adding to 1220052265 its reverse (5622500221), we get a palindrome (6842552486).

The spelling of 1220052265 in words is "one billion, two hundred twenty million, fifty-two thousand, two hundred sixty-five".