211120122222200 has 192 divisors, whose sum is σ = 506186596984320. Its totient is φ = 81851861952000.

The previous prime is 211120122222137. The next prime is 211120122222257. The reversal of 211120122222200 is 2222221021112.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 1721078069 + ... + 1721200731.

It is an arithmetic number, because the mean of its divisors is an integer number (2636388525960).

Almost surely, 2^{211120122222200} is an apocalyptic number.

211120122222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211120122222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253093298492160).

211120122222200 is an abundant number, since it is smaller than the sum of its proper divisors (295066474762120).

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

211120122222200 is a wasteful number, since it uses less digits than its factorization.

211120122222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124798 (or 124789 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 211120122222200 its reverse (2222221021112), we get a palindrome (213342343243312).

The spelling of 211120122222200 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred".