220220104 has 16 divisors (see below), whose sum is σ = 444675420. Its totient is φ = 101640000.

The previous prime is 220220093. The next prime is 220220107. The reversal of 220220104 is 401022022.

It can be written as a sum of positive squares in 2 ways, for example, as 216972900 + 3247204 = 14730^2 + 1802^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (220220107) 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, 1058647 + ... + 1058854.

Almost surely, 2^220220104 is an apocalyptic number.

It is an amenable number.

220220104 is an abundant number, since it is smaller than the sum of its proper divisors (224455316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220220104 is a wasteful number, since it uses less digits than its factorization.

220220104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117520 (or 2117516 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 220220104 is about 14839.8148236425. The cubic root of 220220104 is about 603.8823287280.

Adding to 220220104 its reverse (401022022), we get a palindrome (621242126).

The spelling of 220220104 in words is "two hundred twenty million, two hundred twenty thousand, one hundred four".