211222220120 has 16 divisors (see below), whose sum is σ = 475249995360. Its totient is φ = 84488888032.

The previous prime is 211222220081. The next prime is 211222220129. The reversal of 211222220120 is 21022222112.

It is a happy number.

211222220120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211222220120² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222220129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2640277712 + ... + 2640277791.

It is an arithmetic number, because the mean of its divisors is an integer number (29703124710).

Almost surely, 2^211222220120 is an apocalyptic number.

211222220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211222220120 is an abundant number, since it is smaller than the sum of its proper divisors (264027775240).

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

211222220120 is a wasteful number, since it uses less digits than its factorization.

211222220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280555514 (or 5280555510 counting only the distinct ones).

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

Adding to 211222220120 its reverse (21022222112), we get a palindrome (232244442232).

The spelling of 211222220120 in words is "two hundred eleven billion, two hundred twenty-two million, two hundred twenty thousand, one hundred twenty".