2220244100 has 18 divisors (see below), whose sum is σ = 4817929914. Its totient is φ = 888097600.

The previous prime is 2220244093. The next prime is 2220244111. The reversal of 2220244100 is 14420222.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 377602624 + 1842641476 = 19432^2 + 42926^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11101121 + ... + 11101320.

It is an arithmetic number, because the mean of its divisors is an integer number (267662773).

Almost surely, 2^2220244100 is an apocalyptic number.

2220244100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220244100 is an abundant number, since it is smaller than the sum of its proper divisors (2597685814).

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

2220244100 is a wasteful number, since it uses less digits than its factorization.

2220244100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22202455 (or 22202448 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2220244100 is about 47119.4662533437. The cubic root of 2220244100 is about 1304.5685611082.

Adding to 2220244100 its reverse (14420222), we get a palindrome (2234664322).

The spelling of 2220244100 in words is "two billion, two hundred twenty million, two hundred forty-four thousand, one hundred".