211321220110 has 128 divisors (see below), whose sum is σ = 515405721600. Its totient is φ = 60241605120.

The previous prime is 211321220107. The next prime is 211321220111. The reversal of 211321220110 is 11022123112.

211321220110 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211321220111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 994251 + ... + 1187929.

It is an arithmetic number, because the mean of its divisors is an integer number (4026607200).

Almost surely, 2^211321220110 is an apocalyptic number.

211321220110 is an abundant number, since it is smaller than the sum of its proper divisors (304084501490).

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

211321220110 is a wasteful number, since it uses less digits than its factorization.

211321220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193826.

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

Adding to 211321220110 its reverse (11022123112), we get a palindrome (222343343222).

The spelling of 211321220110 in words is "two hundred eleven billion, three hundred twenty-one million, two hundred twenty thousand, one hundred ten".