211331122 has 8 divisors (see below), whose sum is σ = 317059200. Its totient is φ = 105644724.

The previous prime is 211331117. The next prime is 211331143. The reversal of 211331122 is 221133112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 211331096 and 211331105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11379 + ... + 23497.

It is an arithmetic number, because the mean of its divisors is an integer number (39632400).

Almost surely, 2^211331122 is an apocalyptic number.

211331122 is a deficient number, since it is larger than the sum of its proper divisors (105728078).

211331122 is a wasteful number, since it uses less digits than its factorization.

211331122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20840.

The product of its digits is 72, while the sum is 16.

The square root of 211331122 is about 14537.2322675260. The cubic root of 211331122 is about 595.6454375807.

Adding to 211331122 its reverse (221133112), we get a palindrome (432464234).

It can be divided in two parts, 21133112 and 2, that multiplied together give a palindrome (42266224).

The spelling of 211331122 in words is "two hundred eleven million, three hundred thirty-one thousand, one hundred twenty-two".