220443102 has 24 divisors (see below), whose sum is σ = 521047800. Its totient is φ = 66800880.

The previous prime is 220443049. The next prime is 220443163. The reversal of 220443102 is 201344022.

220443102 is a `hidden beast` number, since 220 + 443 + 1 + 0 + 2 = 666.

It is a super-2 number, since 2×220443102² = 97190322438764808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 556477 + ... + 556872.

It is an arithmetic number, because the mean of its divisors is an integer number (21710325).

Almost surely, 2^220443102 is an apocalyptic number.

220443102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220443102 is an abundant number, since it is smaller than the sum of its proper divisors (300604698).

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

220443102 is a wasteful number, since it uses less digits than its factorization.

220443102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113368 (or 1113365 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 220443102 is about 14847.3264259933. The cubic root of 220443102 is about 604.0860932349.

Adding to 220443102 its reverse (201344022), we get a palindrome (421787124).

The spelling of 220443102 in words is "two hundred twenty million, four hundred forty-three thousand, one hundred two".