222022220220 has 36 divisors (see below), whose sum is σ = 673467401880. Its totient is φ = 59205925344.

The previous prime is 222022220197. The next prime is 222022220249. The reversal of 222022220220 is 22022220222.

222022220220 is a `hidden beast` number, since 2 + 220 + 2 + 2 + 220 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222022220193 and 222022220202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 616728210 + ... + 616728569.

It is an arithmetic number, because the mean of its divisors is an integer number (18707427830).

Almost surely, 2^222022220220 is an apocalyptic number.

222022220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222022220220 is an abundant number, since it is smaller than the sum of its proper divisors (451445181660).

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

222022220220 is a wasteful number, since it uses less digits than its factorization.

222022220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233456794 (or 1233456789 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 222022220220 its reverse (22022220222), we get a palindrome (244044440442).

It can be divided in two parts, 22202 and 2220220, that added together give a palindrome (2242422).

The spelling of 222022220220 in words is "two hundred twenty-two billion, twenty-two million, two hundred twenty thousand, two hundred twenty".