221225441324 has 12 divisors (see below), whose sum is σ = 391494461400. Its totient is φ = 109369880928.

The previous prime is 221225441303. The next prime is 221225441347. The reversal of 221225441324 is 423144522122.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 310709534 + ... + 310710245.

It is an arithmetic number, because the mean of its divisors is an integer number (32624538450).

Almost surely, 2^221225441324 is an apocalyptic number.

It is an amenable number.

221225441324 is a deficient number, since it is larger than the sum of its proper divisors (170269020076).

221225441324 is a wasteful number, since it uses less digits than its factorization.

221225441324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621419872 (or 621419870 counting only the distinct ones).

The product of its digits is 30720, while the sum is 32.

Adding to 221225441324 its reverse (423144522122), we get a palindrome (644369963446).

The spelling of 221225441324 in words is "two hundred twenty-one billion, two hundred twenty-five million, four hundred forty-one thousand, three hundred twenty-four".