212112122111122 has 8 divisors (see below), whose sum is σ = 318298526550972. Its totient is φ = 106012613260800.

The previous prime is 212112122111117. The next prime is 212112122111173. The reversal of 212112122111122 is 221111221211212.

It can be written as a sum of positive squares in 2 ways, for example, as 157936501463841 + 54175620647281 = 12567279^2 + 7360409^2 .

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 212112122111093 and 212112122111102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21723891279 + ... + 21723901042.

Almost surely, 2^{212112122111122} is an apocalyptic number.

212112122111122 is a deficient number, since it is larger than the sum of its proper divisors (106186404439850).

212112122111122 is a wasteful number, since it uses less digits than its factorization.

212112122111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43447794764.

The product of its digits is 128, while the sum is 22.

Adding to 212112122111122 its reverse (221111221211212), we get a palindrome (433223343322334).

The spelling of 212112122111122 in words is "two hundred twelve trillion, one hundred twelve billion, one hundred twenty-two million, one hundred eleven thousand, one hundred twenty-two".