220340440220 has 48 divisors (see below), whose sum is σ = 485530536960. Its totient is φ = 83833164096.

The previous prime is 220340440219. The next prime is 220340440237. The reversal of 220340440220 is 22044043022.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1255652 + ... + 1420331.

It is an arithmetic number, because the mean of its divisors is an integer number (10115219520).

Almost surely, 2^220340440220 is an apocalyptic number.

220340440220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220340440220 is an abundant number, since it is smaller than the sum of its proper divisors (265190096740).

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

220340440220 is a wasteful number, since it uses less digits than its factorization.

220340440220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676194 (or 2676192 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 220340440220 its reverse (22044043022), we get a palindrome (242384483242).

The spelling of 220340440220 in words is "two hundred twenty billion, three hundred forty million, four hundred forty thousand, two hundred twenty".