220220020221 has 16 divisors (see below), whose sum is σ = 293951818944. Its totient is φ = 146650863744.

The previous prime is 220220020187. The next prime is 220220020261. The reversal of 220220020221 is 122020022022.

It is not a de Polignac number, because 220220020221 - 2⁶ = 220220020157 is a prime.

It is a super-2 number, since 2×220220020221² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220220020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220020261) 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, 14960361 + ... + 14975073.

It is an arithmetic number, because the mean of its divisors is an integer number (18371988684).

Almost surely, 2^220220020221 is an apocalyptic number.

It is an amenable number.

220220020221 is a deficient number, since it is larger than the sum of its proper divisors (73731798723).

220220020221 is a wasteful number, since it uses less digits than its factorization.

220220020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19900.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 220220020221 its reverse (122020022022), we get a palindrome (342240042243).

The spelling of 220220020221 in words is "two hundred twenty billion, two hundred twenty million, twenty thousand, two hundred twenty-one".