211111102211122 has 32 divisors (see below), whose sum is σ = 343603663305840. Its totient is φ = 96886166814720.

The previous prime is 211111102211101. The next prime is 211111102211123. The reversal of 211111102211122 is 221112201111112.

It can be written as a sum of positive squares in 8 ways, for example, as 39181077351441 + 171930024859681 = 6259479^2 + 13112209^2 .

It is a super-3 number, since 3×211111102211122³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211111102211122.

It is not an unprimeable number, because it can be changed into a prime (211111102211123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25386183 + ... + 32660074.

Almost surely, 2^{211111102211122} is an apocalyptic number.

211111102211122 is a deficient number, since it is larger than the sum of its proper divisors (132492561094718).

211111102211122 is a wasteful number, since it uses less digits than its factorization.

211111102211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58048926.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 211111102211122 its reverse (221112201111112), we get a palindrome (432223303322234).

The spelling of 211111102211122 in words is "two hundred eleven trillion, one hundred eleven billion, one hundred two million, two hundred eleven thousand, one hundred twenty-two".