220200221021221 has 32 divisors (see below), whose sum is σ = 255460456562688. Its totient is φ = 185910588668160.

The previous prime is 220200221021197. The next prime is 220200221021303. The reversal of 220200221021221 is 122120122002022.

It is a cyclic number.

It is not a de Polignac number, because 220200221021221 - 2¹¹ = 220200221019173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220200221021021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1258177906 + ... + 1258352908.

It is an arithmetic number, because the mean of its divisors is an integer number (7983139267584).

Almost surely, 2^{220200221021221} is an apocalyptic number.

It is an amenable number.

220200221021221 is a deficient number, since it is larger than the sum of its proper divisors (35260235541467).

220200221021221 is a wasteful number, since it uses less digits than its factorization.

220200221021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184441.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220200221021221 its reverse (122120122002022), we get a palindrome (342320343023243).

The spelling of 220200221021221 in words is "two hundred twenty trillion, two hundred billion, two hundred twenty-one million, twenty-one thousand, two hundred twenty-one".