2221234445 has 16 divisors (see below), whose sum is σ = 2748979200. Its totient is φ = 1721974464.

The previous prime is 2221234441. The next prime is 2221234471. The reversal of 2221234445 is 5444321222.

It is a cyclic number.

It is not a de Polignac number, because 2221234445 - 2² = 2221234441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221234441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13370 + ... + 67979.

It is an arithmetic number, because the mean of its divisors is an integer number (171811200).

Almost surely, 2^2221234445 is an apocalyptic number.

It is an amenable number.

2221234445 is a deficient number, since it is larger than the sum of its proper divisors (527744755).

2221234445 is a wasteful number, since it uses less digits than its factorization.

2221234445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81524.

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

The square root of 2221234445 is about 47129.9739550108. The cubic root of 2221234445 is about 1304.7625008802.

Adding to 2221234445 its reverse (5444321222), we get a palindrome (7665555667).

The spelling of 2221234445 in words is "two billion, two hundred twenty-one million, two hundred thirty-four thousand, four hundred forty-five".