221243043122330 has 8 divisors (see below), whose sum is σ = 398237477620212. Its totient is φ = 88497217248928.

The previous prime is 221243043122323. The next prime is 221243043122357. The reversal of 221243043122330 is 33221340342122.

It can be written as a sum of positive squares in 2 ways, for example, as 207642134302849 + 13600908819481 = 14409793^2 + 3687941^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 11062152156107 + ... + 11062152156126.

Almost surely, 2^{221243043122330} is an apocalyptic number.

221243043122330 is a deficient number, since it is larger than the sum of its proper divisors (176994434497882).

221243043122330 is a wasteful number, since it uses less digits than its factorization.

221243043122330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22124304312240.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 221243043122330 its reverse (33221340342122), we get a palindrome (254464383464452).

The spelling of 221243043122330 in words is "two hundred twenty-one trillion, two hundred forty-three billion, forty-three million, one hundred twenty-two thousand, three hundred thirty".