211222022222200 has 192 divisors, whose sum is σ = 567384288429600. Its totient is φ = 72272741990400.

The previous prime is 211222022222161. The next prime is 211222022222203. The reversal of 211222022222200 is 2222220222112.

It is a super-2 number, since 2×211222022222200² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222022222203) 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 47 ways as a sum of consecutive naturals, for example, 157496872 + ... + 158832328.

Almost surely, 2^{211222022222200} is an apocalyptic number.

211222022222200 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 211222022222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283692144214800).

211222022222200 is an abundant number, since it is smaller than the sum of its proper divisors (356162266207400).

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

211222022222200 is a wasteful number, since it uses less digits than its factorization.

211222022222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339730 (or 1339721 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 211222022222200 its reverse (2222220222112), we get a palindrome (213444242444312).

The spelling of 211222022222200 in words is "two hundred eleven trillion, two hundred twenty-two billion, twenty-two million, two hundred twenty-two thousand, two hundred".