2223221545 has 8 divisors (see below), whose sum is σ = 2680511040. Its totient is φ = 1770147120.

The previous prime is 2223221543. The next prime is 2223221549. The reversal of 2223221545 is 5451223222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2223221545 - 2¹ = 2223221543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2223221543) 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 7 ways as a sum of consecutive naturals, for example, 1052605 + ... + 1054714.

It is an arithmetic number, because the mean of its divisors is an integer number (335063880).

Almost surely, 2^2223221545 is an apocalyptic number.

It is an amenable number.

2223221545 is a deficient number, since it is larger than the sum of its proper divisors (457289495).

2223221545 is a wasteful number, since it uses less digits than its factorization.

2223221545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107535.

The product of its digits is 9600, while the sum is 28.

The square root of 2223221545 is about 47151.0503064354. The cubic root of 2223221545 is about 1305.1514618955.

Adding to 2223221545 its reverse (5451223222), we get a palindrome (7674444767).

The spelling of 2223221545 in words is "two billion, two hundred twenty-three million, two hundred twenty-one thousand, five hundred forty-five".