220243122 has 24 divisors (see below), whose sum is σ = 520575120. Its totient is φ = 66740280.

The previous prime is 220243099. The next prime is 220243159. The reversal of 220243122 is 221342022.

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

It is a junction number, because it is equal to n+sod(n) for n = 220243095 and 220243104.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 555972 + ... + 556367.

It is an arithmetic number, because the mean of its divisors is an integer number (21690630).

Almost surely, 2^220243122 is an apocalyptic number.

220243122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220243122 is an abundant number, since it is smaller than the sum of its proper divisors (300331998).

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

220243122 is a wasteful number, since it uses less digits than its factorization.

220243122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112358 (or 1112355 counting only the distinct ones).

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

The square root of 220243122 is about 14840.5903521390. The cubic root of 220243122 is about 603.9033677990.

Adding to 220243122 its reverse (221342022), we get a palindrome (441585144).

It can be divided in two parts, 220 and 243122, that added together give a palindrome (243342).

The spelling of 220243122 in words is "two hundred twenty million, two hundred forty-three thousand, one hundred twenty-two".