223031443220 has 48 divisors (see below), whose sum is σ = 495994717008. Its totient is φ = 83951616000.

The previous prime is 223031443183. The next prime is 223031443249. The reversal of 223031443220 is 22344130322.

It can be written as a sum of positive squares in 8 ways, for example, as 25755114256 + 197276328964 = 160484^2 + 444158^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 223031443220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2275220 + ... + 2371220.

It is an arithmetic number, because the mean of its divisors is an integer number (10333223271).

Almost surely, 2^223031443220 is an apocalyptic number.

223031443220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223031443220 is an abundant number, since it is smaller than the sum of its proper divisors (272963273788).

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

223031443220 is a wasteful number, since it uses less digits than its factorization.

223031443220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102860 (or 102858 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 223031443220 its reverse (22344130322), we get a palindrome (245375573542).

The spelling of 223031443220 in words is "two hundred twenty-three billion, thirty-one million, four hundred forty-three thousand, two hundred twenty".