2221345244 has 12 divisors (see below), whose sum is σ = 4056369744. Its totient is φ = 1062382464.

The previous prime is 2221345237. The next prime is 2221345249. The reversal of 2221345244 is 4425431222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221345249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12072437 + ... + 12072620.

It is an arithmetic number, because the mean of its divisors is an integer number (338030812).

Almost surely, 2^2221345244 is an apocalyptic number.

It is an amenable number.

2221345244 is a deficient number, since it is larger than the sum of its proper divisors (1835024500).

2221345244 is a wasteful number, since it uses less digits than its factorization.

2221345244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24145084 (or 24145082 counting only the distinct ones).

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

The square root of 2221345244 is about 47131.1494024918. The cubic root of 2221345244 is about 1304.7841951198.

Adding to 2221345244 its reverse (4425431222), we get a palindrome (6646776466).

The spelling of 2221345244 in words is "two billion, two hundred twenty-one million, three hundred forty-five thousand, two hundred forty-four".