220220011 has 4 divisors (see below), whose sum is σ = 240240024. Its totient is φ = 200200000.

The previous prime is 220219991. The next prime is 220220053. The reversal of 220220011 is 110022022.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 220220011 - 2²⁷ = 86002283 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 220220011.

It is not an unprimeable number, because it can be changed into a prime (220220111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10009990 + ... + 10010011.

It is an arithmetic number, because the mean of its divisors is an integer number (60060006).

Almost surely, 2^220220011 is an apocalyptic number.

220220011 is a deficient number, since it is larger than the sum of its proper divisors (20020013).

220220011 is a wasteful number, since it uses less digits than its factorization.

220220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20020012.

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

The square root of 220220011 is about 14839.8116901799. The cubic root of 220220011 is about 603.8822437205.

Adding to 220220011 its reverse (110022022), we get a palindrome (330242033).

The spelling of 220220011 in words is "two hundred twenty million, two hundred twenty thousand, eleven".