211011022220 has 48 divisors (see below), whose sum is σ = 444364704000.
Its totient is φ = 84168199104.
The previous prime is 211011022219. The next prime is 211011022223. The reversal of 211011022220 is 22220110112.
Adding to 211011022220 its reverse (22220110112), we get a palindrome (233231132332).
It is a junction number, because it is equal to n+sod(n) for n = 211011022195 and 211011022204.
It is not an unprimeable number, because it can be changed into a prime (211011022223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13634927 + ... + 13650393.
It is an arithmetic number, because the mean of its divisors is an integer number (9257598000).
Almost surely, 2211011022220 is an apocalyptic number.
211011022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
211011022220 is an abundant number, since it is smaller than the sum of its proper divisors (233353681780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211011022220 is a wasteful number, since it uses less digits than its factorization.
211011022220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17342 (or 17340 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 14.
The spelling of 211011022220 in words is "two hundred eleven billion, eleven million, twenty-two thousand, two hundred twenty".