222112122000020 has 72 divisors (see below), whose sum is σ = 542591997899616. Its totient is φ = 76152192223296.

The previous prime is 222112122000011. The next prime is 222112122000031. The reversal of 222112122000020 is 20000221211222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154031207 + ... + 155466513.

It is an arithmetic number, because the mean of its divisors is an integer number (7535999970828).

Almost surely, 2^{222112122000020} is an apocalyptic number.

222112122000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222112122000020 is an abundant number, since it is smaller than the sum of its proper divisors (320479875899596).

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

222112122000020 is a wasteful number, since it uses less digits than its factorization.

222112122000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593237 (or 1593228 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222112122000020 its reverse (20000221211222), we get a palindrome (242112343211242).

The spelling of 222112122000020 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred twenty-two million, twenty", and thus it is an aban number.