220202202220221 has 16 divisors (see below), whose sum is σ = 322153584673536. Its totient is φ = 132952273037376.

The previous prime is 220202202220213. The next prime is 220202202220249. The reversal of 220202202220221 is 122022202202022.

It is not a de Polignac number, because 220202202220221 - 2³ = 220202202220213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202202220211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53266132965 + ... + 53266137098.

It is an arithmetic number, because the mean of its divisors is an integer number (20134599042096).

Almost surely, 2^{220202202220221} is an apocalyptic number.

It is an amenable number.

220202202220221 is a deficient number, since it is larger than the sum of its proper divisors (101951382453315).

220202202220221 is a wasteful number, since it uses less digits than its factorization.

220202202220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106532270132.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 220202202220221 its reverse (122022202202022), we get a palindrome (342224404422243).

The spelling of 220202202220221 in words is "two hundred twenty trillion, two hundred two billion, two hundred two million, two hundred twenty thousand, two hundred twenty-one".