2220244561530 has 96 divisors (see below), whose sum is σ = 5911017465600. Its totient is φ = 577938727296.

The previous prime is 2220244561489. The next prime is 2220244561541. The reversal of 2220244561530 is 351654420222.

2220244561530 is a `hidden beast` number, since 2 + 2 + 2 + 0 + 2 + 4 + 4 + 5 + 615 + 30 = 666.

2220244561530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 910716 + ... + 2295624.

It is an arithmetic number, because the mean of its divisors is an integer number (61573098600).

Almost surely, 2^{2220244561530} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2220244561530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2955508732800).

2220244561530 is an abundant number, since it is smaller than the sum of its proper divisors (3690772904070).

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

2220244561530 is a wasteful number, since it uses less digits than its factorization.

2220244561530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385348 (or 1385345 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 2220244561530 its reverse (351654420222), we get a palindrome (2571898981752).

The spelling of 2220244561530 in words is "two trillion, two hundred twenty billion, two hundred forty-four million, five hundred sixty-one thousand, five hundred thirty".