222111200020 has 48 divisors (see below), whose sum is σ = 482426380800. Its totient is φ = 85809490560.

The previous prime is 222111199997. The next prime is 222111200023. The reversal of 222111200020 is 20002111222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111200023) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 36330 + ... + 667489.

It is an arithmetic number, because the mean of its divisors is an integer number (10050549600).

Almost surely, 2^222111200020 is an apocalyptic number.

222111200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222111200020 is an abundant number, since it is smaller than the sum of its proper divisors (260315180780).

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

222111200020 is a wasteful number, since it uses less digits than its factorization.

222111200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704368 (or 704366 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222111200020 its reverse (20002111222), we get a palindrome (242113311242).

The spelling of 222111200020 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred thousand, twenty".