211010110220 has 72 divisors (see below), whose sum is σ = 555118938864. Its totient is φ = 66781217664.

The previous prime is 211010110189. The next prime is 211010110253. The reversal of 211010110220 is 22011010112.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8268662 + ... + 8294141.

It is an arithmetic number, because the mean of its divisors is an integer number (7709985262).

Almost surely, 2^211010110220 is an apocalyptic number.

211010110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211010110220 is an abundant number, since it is smaller than the sum of its proper divisors (344108828644).

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

211010110220 is a wasteful number, since it uses less digits than its factorization.

211010110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16562839 (or 16562830 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211010110220 its reverse (22011010112), we get a palindrome (233021120332).

The spelling of 211010110220 in words is "two hundred eleven billion, ten million, one hundred ten thousand, two hundred twenty".