222232123220 has 12 divisors (see below), whose sum is σ = 466687458804. Its totient is φ = 88892849280.

The previous prime is 222232123207. The next prime is 222232123247. The reversal of 222232123220 is 22321232222.

222232123220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 87571013776 + 134661109444 = 295924^2 + 366962^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555803061 + ... + 5555803100.

It is an arithmetic number, because the mean of its divisors is an integer number (38890621567).

Almost surely, 2^222232123220 is an apocalyptic number.

222232123220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222232123220 is an abundant number, since it is smaller than the sum of its proper divisors (244455335584).

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

222232123220 is a wasteful number, since it uses less digits than its factorization.

222232123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111606170 (or 11111606168 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 222232123220 its reverse (22321232222), we get a palindrome (244553355442).

It can be divided in two parts, 2 and 22232123220, that added together give a palindrome (22232123222).

The spelling of 222232123220 in words is "two hundred twenty-two billion, two hundred thirty-two million, one hundred twenty-three thousand, two hundred twenty".