220021302330221 has 32 divisors (see below), whose sum is σ = 260759413555200. Its totient is φ = 181666475303040.

The previous prime is 220021302330209. The next prime is 220021302330293. The reversal of 220021302330221 is 122033203120022.

It is not a de Polignac number, because 220021302330221 - 2⁶ = 220021302330157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220021302360221) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 123221750 + ... + 124994568.

It is an arithmetic number, because the mean of its divisors is an integer number (8148731673600).

Almost surely, 2^{220021302330221} is an apocalyptic number.

It is an amenable number.

220021302330221 is a deficient number, since it is larger than the sum of its proper divisors (40738111224979).

220021302330221 is a wasteful number, since it uses less digits than its factorization.

220021302330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775489.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 220021302330221 its reverse (122033203120022), we get a palindrome (342054505450243).

The spelling of 220021302330221 in words is "two hundred twenty trillion, twenty-one billion, three hundred two million, three hundred thirty thousand, two hundred twenty-one".