220012212201221 has 8 divisors (see below), whose sum is σ = 245595027573984. Its totient is φ = 195359681023920.

The previous prime is 220012212201203. The next prime is 220012212201241. The reversal of 220012212201221 is 122102212210022.

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

It is a cyclic number.

It is not a de Polignac number, because 220012212201221 - 2¹⁰ = 220012212200197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220012212201193 and 220012212201202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220012212201241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232571048366 + ... + 232571049311.

It is an arithmetic number, because the mean of its divisors is an integer number (30699378446748).

Almost surely, 2^{220012212201221} is an apocalyptic number.

It is an amenable number.

220012212201221 is a deficient number, since it is larger than the sum of its proper divisors (25582815372763).

220012212201221 is a wasteful number, since it uses less digits than its factorization.

220012212201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465142097731.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 220012212201221 its reverse (122102212210022), we get a palindrome (342114424411243).

The spelling of 220012212201221 in words is "two hundred twenty trillion, twelve billion, two hundred twelve million, two hundred one thousand, two hundred twenty-one".