220421104 has 20 divisors (see below), whose sum is σ = 427472640. Its totient is φ = 110105600.

The previous prime is 220421041. The next prime is 220421107. The reversal of 220421104 is 401124022.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220421107) 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, 12432 + ... + 24400.

It is an arithmetic number, because the mean of its divisors is an integer number (21373632).

Almost surely, 2^220421104 is an apocalyptic number.

It is an amenable number.

220421104 is a deficient number, since it is larger than the sum of its proper divisors (207051536).

220421104 is a wasteful number, since it uses less digits than its factorization.

220421104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13128 (or 13122 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 220421104 is about 14846.5856007366. The cubic root of 220421104 is about 604.0659986650.

Adding to 220421104 its reverse (401124022), we get a palindrome (621545126).

The spelling of 220421104 in words is "two hundred twenty million, four hundred twenty-one thousand, one hundred four".