211311223122110 has 64 divisors (see below), whose sum is σ = 398685588084864. Its totient is φ = 80485834598400.

The previous prime is 211311223122091. The next prime is 211311223122113. The reversal of 211311223122110 is 11221322113112.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211311223122113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67031642 + ... + 70113218.

It is an arithmetic number, because the mean of its divisors is an integer number (6229462313826).

Almost surely, 2^{211311223122110} is an apocalyptic number.

211311223122110 is a deficient number, since it is larger than the sum of its proper divisors (187374364962754).

211311223122110 is a wasteful number, since it uses less digits than its factorization.

211311223122110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082949.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 211311223122110 its reverse (11221322113112), we get a palindrome (222532545235222).

The spelling of 211311223122110 in words is "two hundred eleven trillion, three hundred eleven billion, two hundred twenty-three million, one hundred twenty-two thousand, one hundred ten".