220220200011221 has 32 divisors (see below), whose sum is σ = 225088883527680. Its totient is φ = 215415352018944.

The previous prime is 220220200011187. The next prime is 220220200011233. The reversal of 220220200011221 is 122110002022022.

It is a happy number.

It is not a de Polignac number, because 220220200011221 - 2³⁴ = 220203020142037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220220200011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220200011271) 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, 6064482161 + ... + 6064518473.

It is an arithmetic number, because the mean of its divisors is an integer number (7034027610240).

Almost surely, 2^{220220200011221} is an apocalyptic number.

It is an amenable number.

220220200011221 is a deficient number, since it is larger than the sum of its proper divisors (4868683516459).

220220200011221 is a wasteful number, since it uses less digits than its factorization.

220220200011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38045.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220220200011221 its reverse (122110002022022), we get a palindrome (342330202033243).

The spelling of 220220200011221 in words is "two hundred twenty trillion, two hundred twenty billion, two hundred million, eleven thousand, two hundred twenty-one".