2221444413 has 16 divisors (see below), whose sum is σ = 3464241600. Its totient is φ = 1403017200.

The previous prime is 2221444403. The next prime is 2221444481. The reversal of 2221444413 is 3144441222.

2221444413 is a `hidden beast` number, since 2 + 2 + 214 + 4 + 441 + 3 = 666.

It is not a de Polignac number, because 2221444413 - 2⁹ = 2221443901 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221444403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2164638 + ... + 2165663.

It is an arithmetic number, because the mean of its divisors is an integer number (216515100).

Almost surely, 2^2221444413 is an apocalyptic number.

It is an amenable number.

2221444413 is a deficient number, since it is larger than the sum of its proper divisors (1242797187).

2221444413 is a wasteful number, since it uses less digits than its factorization.

2221444413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330329 (or 4330323 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 2221444413 is about 47132.2014444477. The cubic root of 2221444413 is about 1304.8036116151.

Adding to 2221444413 its reverse (3144441222), we get a palindrome (5365885635).

The spelling of 2221444413 in words is "two billion, two hundred twenty-one million, four hundred forty-four thousand, four hundred thirteen".