223302021445 has 12 divisors (see below), whose sum is σ = 277521138180. Its totient is φ = 172481558144.

The previous prime is 223302021431. The next prime is 223302021463. The reversal of 223302021445 is 544120203322.

It can be written as a sum of positive squares in 6 ways, for example, as 18736681924 + 204565339521 = 136882^2 + 452289^2 .

It is not a de Polignac number, because 223302021445 - 2⁹ = 223302020933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26547760 + ... + 26556169.

It is an arithmetic number, because the mean of its divisors is an integer number (23126761515).

Almost surely, 2^223302021445 is an apocalyptic number.

It is an amenable number.

223302021445 is a deficient number, since it is larger than the sum of its proper divisors (54219116735).

223302021445 is an equidigital number, since it uses as much as digits as its factorization.

223302021445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53103992 (or 53103963 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 223302021445 its reverse (544120203322), we get a palindrome (767422224767).

The spelling of 223302021445 in words is "two hundred twenty-three billion, three hundred two million, twenty-one thousand, four hundred forty-five".