2220504312 has 128 divisors (see below), whose sum is σ = 6370156800. Its totient is φ = 639332352.

The previous prime is 2220504263. The next prime is 2220504313. The reversal of 2220504312 is 2134050222.

It is a super-2 number, since 2×2220504312² = 9861278799221186688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220504313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489768 + ... + 494280.

It is an arithmetic number, because the mean of its divisors is an integer number (49766850).

Almost surely, 2^2220504312 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 2220504312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3185078400).

2220504312 is an abundant number, since it is smaller than the sum of its proper divisors (4149652488).

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

2220504312 is a wasteful number, since it uses less digits than its factorization.

2220504312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4637 (or 4633 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2220504312 is about 47122.2273667109. The cubic root of 2220504312 is about 1304.6195241433.

Adding to 2220504312 its reverse (2134050222), we get a palindrome (4354554534).

The spelling of 2220504312 in words is "two billion, two hundred twenty million, five hundred four thousand, three hundred twelve".