221303012012330 has 16 divisors (see below), whose sum is σ = 398345619000744. Its totient is φ = 88521160943040.

The previous prime is 221303012012281. The next prime is 221303012012347. The reversal of 221303012012330 is 33210210303122.

It can be written as a sum of positive squares in 4 ways, for example, as 220995012541801 + 307999470529 = 14865901^2 + 554977^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221303012012296 and 221303012012305.

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 7 ways as a sum of consecutive naturals, for example, 22517540 + ... + 30816320.

Almost surely, 2^{221303012012330} is an apocalyptic number.

221303012012330 is a deficient number, since it is larger than the sum of its proper divisors (177042606988414).

221303012012330 is a wasteful number, since it uses less digits than its factorization.

221303012012330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10965481.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221303012012330 its reverse (33210210303122), we get a palindrome (254513222315452).

The spelling of 221303012012330 in words is "two hundred twenty-one trillion, three hundred three billion, twelve million, twelve thousand, three hundred thirty".