2222206544 has 60 divisors (see below), whose sum is σ = 4616696700. Its totient is φ = 1035915264.

The previous prime is 2222206543. The next prime is 2222206549. The reversal of 2222206544 is 4456022222.

It can be written as a sum of positive squares in 6 ways, for example, as 45050944 + 2177155600 = 6712^2 + 46660^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222206543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501812 + ... + 506220.

It is an arithmetic number, because the mean of its divisors is an integer number (76944945).

Almost surely, 2^2222206544 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 2222206544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2308348350).

2222206544 is an abundant number, since it is smaller than the sum of its proper divisors (2394490156).

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

2222206544 is a wasteful number, since it uses less digits than its factorization.

2222206544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4560 (or 4537 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 2222206544 is about 47140.2857861511. The cubic root of 2222206544 is about 1304.9528114742.

Adding to 2222206544 its reverse (4456022222), we get a palindrome (6678228766).

The spelling of 2222206544 in words is "two billion, two hundred twenty-two million, two hundred six thousand, five hundred forty-four".