211010022220 has 12 divisors (see below), whose sum is σ = 443121046704. Its totient is φ = 84404008880.

The previous prime is 211010022173. The next prime is 211010022221. The reversal of 211010022220 is 22220010112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 211010022220.

It is not an unprimeable number, because it can be changed into a prime (211010022221) 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 3 ways as a sum of consecutive naturals, for example, 5275250536 + ... + 5275250575.

It is an arithmetic number, because the mean of its divisors is an integer number (36926753892).

Almost surely, 2^211010022220 is an apocalyptic number.

211010022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211010022220 is an abundant number, since it is smaller than the sum of its proper divisors (232111024484).

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

211010022220 is a wasteful number, since it uses less digits than its factorization.

211010022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10550501120 (or 10550501118 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 211010022220 its reverse (22220010112), we get a palindrome (233230032332).

The spelling of 211010022220 in words is "two hundred eleven billion, ten million, twenty-two thousand, two hundred twenty".