1220202752 has 36 divisors (see below), whose sum is σ = 2442099660. Its totient is φ = 608483328.

The previous prime is 1220202751. The next prime is 1220202769. The reversal of 1220202752 is 2572020221.

It can be written as a sum of positive squares in 2 ways, for example, as 435306496 + 784896256 = 20864^2 + 28016^2 .

It is not an unprimeable number, because it can be changed into a prime (1220202751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93458 + ... + 105710.

Almost surely, 2^1220202752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220202752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1221049830).

1220202752 is an abundant number, since it is smaller than the sum of its proper divisors (1221896908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220202752 is an equidigital number, since it uses as much as digits as its factorization.

1220202752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12658 (or 12644 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 1220202752 is about 34931.4006590059. The cubic root of 1220202752 is about 1068.5889199138.

Adding to 1220202752 its reverse (2572020221), we get a palindrome (3792222973).

The spelling of 1220202752 in words is "one billion, two hundred twenty million, two hundred two thousand, seven hundred fifty-two".