211303111122 has 12 divisors (see below), whose sum is σ = 457823407470. Its totient is φ = 70434370368.

The previous prime is 211303111099. The next prime is 211303111139. The reversal of 211303111122 is 221111303112.

211303111122 is a `hidden beast` number, since 211 + 30 + 311 + 112 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 114488166321 + 96814944801 = 338361^2 + 311151^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11739061729 = 211303111122 / (2 + 1 + 1 + 3 + 0 + 3 + 1 + 1 + 1 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 211303111095 and 211303111104.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5869530847 + ... + 5869530882.

Almost surely, 2^211303111122 is an apocalyptic number.

211303111122 is an abundant number, since it is smaller than the sum of its proper divisors (246520296348).

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

211303111122 is a wasteful number, since it uses less digits than its factorization.

211303111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11739061737 (or 11739061734 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 211303111122 its reverse (221111303112), we get a palindrome (432414414234).

The spelling of 211303111122 in words is "two hundred eleven billion, three hundred three million, one hundred eleven thousand, one hundred twenty-two".