222320030020 has 72 divisors (see below), whose sum is σ = 527043188952. Its totient is φ = 78658652160.

The previous prime is 222320030011. The next prime is 222320030021. The reversal of 222320030020 is 20030023222.

It can be written as a sum of positive squares in 4 ways, for example, as 80942526016 + 141377504004 = 284504^2 + 376002^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222320029976 and 222320030003.

It is not an unprimeable number, because it can be changed into a prime (222320030021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1151917 + ... + 1330996.

It is an arithmetic number, because the mean of its divisors is an integer number (7320044291).

Almost surely, 2^222320030020 is an apocalyptic number.

222320030020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222320030020 is an abundant number, since it is smaller than the sum of its proper divisors (304723158932).

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

222320030020 is a wasteful number, since it uses less digits than its factorization.

222320030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482981 (or 2482968 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 222320030020 its reverse (20030023222), we get a palindrome (242350053242).

The spelling of 222320030020 in words is "two hundred twenty-two billion, three hundred twenty million, thirty thousand, twenty".