211110211120 has 20 divisors (see below), whose sum is σ = 490831241040. Its totient is φ = 84444084416.

The previous prime is 211110211111. The next prime is 211110211139. The reversal of 211110211120 is 21112011112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 211110211120.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319438740 + ... + 1319438899.

It is an arithmetic number, because the mean of its divisors is an integer number (24541562052).

Almost surely, 2^211110211120 is an apocalyptic number.

211110211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211110211120 is an abundant number, since it is smaller than the sum of its proper divisors (279721029920).

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

211110211120 is a wasteful number, since it uses less digits than its factorization.

211110211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638877652 (or 2638877646 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211110211120 its reverse (21112011112), we get a palindrome (232222222232).

The spelling of 211110211120 in words is "two hundred eleven billion, one hundred ten million, two hundred eleven thousand, one hundred twenty".