212102011200222 has 96 divisors (see below), whose sum is σ = 540022822335360. Its totient is φ = 59315300516160.

The previous prime is 212102011200151. The next prime is 212102011200281. The reversal of 212102011200222 is 222002110201212.

It is a happy number.

212102011200222 is a `hidden beast` number, since 2 + 1 + 210 + 20 + 11 + 200 + 222 = 666.

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 = 212102011200195 and 212102011200204.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1288833 + ... + 20636499.

It is an arithmetic number, because the mean of its divisors is an integer number (5625237732660).

Almost surely, 2^{212102011200222} is an apocalyptic number.

212102011200222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 212102011200222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270011411167680).

212102011200222 is an abundant number, since it is smaller than the sum of its proper divisors (327920811135138).

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

212102011200222 is a wasteful number, since it uses less digits than its factorization.

212102011200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19351958 (or 19351955 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212102011200222 its reverse (222002110201212), we get a palindrome (434104121401434).

The spelling of 212102011200222 in words is "two hundred twelve trillion, one hundred two billion, eleven million, two hundred thousand, two hundred twenty-two".