222002240220 has 36 divisors (see below), whose sum is σ = 673406795880. Its totient is φ = 59200597344.

The previous prime is 222002240203. The next prime is 222002240261. The reversal of 222002240220 is 22042200222.

It is a happy number.

222002240220 is a `hidden beast` number, since 2 + 2 + 200 + 2 + 240 + 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 = 222002240193 and 222002240202.

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, 616672710 + ... + 616673069.

It is an arithmetic number, because the mean of its divisors is an integer number (18705744330).

Almost surely, 2^222002240220 is an apocalyptic number.

222002240220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222002240220 is an abundant number, since it is smaller than the sum of its proper divisors (451404555660).

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

222002240220 is a wasteful number, since it uses less digits than its factorization.

222002240220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233345794 (or 1233345789 counting only the distinct ones).

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

Adding to 222002240220 its reverse (22042200222), we get a palindrome (244044440442).

The spelling of 222002240220 in words is "two hundred twenty-two billion, two million, two hundred forty thousand, two hundred twenty".