220220101 has 4 divisors (see below), whose sum is σ = 229794912. Its totient is φ = 210645292.

The previous prime is 220220093. The next prime is 220220107. The reversal of 220220101 is 101022022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220220101 - 2³ = 220220093 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 (220220107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4787371 + ... + 4787416.

It is an arithmetic number, because the mean of its divisors is an integer number (57448728).

Almost surely, 2^220220101 is an apocalyptic number.

It is an amenable number.

220220101 is a deficient number, since it is larger than the sum of its proper divisors (9574811).

220220101 is an equidigital number, since it uses as much as digits as its factorization.

220220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9574810.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 220220101 is about 14839.8147225631. The cubic root of 220220101 is about 603.8823259858.

Adding to 220220101 its reverse (101022022), we get a palindrome (321242123).

The spelling of 220220101 in words is "two hundred twenty million, two hundred twenty thousand, one hundred one".