222023122220 has 24 divisors (see below), whose sum is σ = 493674943104. Its totient is φ = 83585175296.

The previous prime is 222023122219. The next prime is 222023122249. The reversal of 222023122220 is 22221320222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 222023122192 and 222023122201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326504252 + ... + 326504931.

It is an arithmetic number, because the mean of its divisors is an integer number (20569789296).

Almost surely, 2^222023122220 is an apocalyptic number.

222023122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222023122220 is an abundant number, since it is smaller than the sum of its proper divisors (271651820884).

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

222023122220 is a wasteful number, since it uses less digits than its factorization.

222023122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653009209 (or 653009207 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 222023122220 its reverse (22221320222), we get a palindrome (244244442442).

The spelling of 222023122220 in words is "two hundred twenty-two billion, twenty-three million, one hundred twenty-two thousand, two hundred twenty".