211132110220 has 12 divisors (see below), whose sum is σ = 443377431504. Its totient is φ = 84452844080.

The previous prime is 211132110209. The next prime is 211132110269. The reversal of 211132110220 is 22011231112.

It is a junction number, because it is equal to n+sod(n) for n = 211132110194 and 211132110203.

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, 5278302736 + ... + 5278302775.

It is an arithmetic number, because the mean of its divisors is an integer number (36948119292).

Almost surely, 2^211132110220 is an apocalyptic number.

211132110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211132110220 is an abundant number, since it is smaller than the sum of its proper divisors (232245321284).

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

211132110220 is a wasteful number, since it uses less digits than its factorization.

211132110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10556605520 (or 10556605518 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211132110220 its reverse (22011231112), we get a palindrome (233143341332).

The spelling of 211132110220 in words is "two hundred eleven billion, one hundred thirty-two million, one hundred ten thousand, two hundred twenty".