211322120122 has 8 divisors (see below), whose sum is σ = 318367386900. Its totient is φ = 105199657824.

The previous prime is 211322120081. The next prime is 211322120129. The reversal of 211322120122 is 221021223112.

It can be written as a sum of positive squares in 2 ways, for example, as 202761984681 + 8560135441 = 450291^2 + 92521^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 211322120122.

It is not an unprimeable number, because it can be changed into a prime (211322120129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230700547 + ... + 230701462.

Almost surely, 2^211322120122 is an apocalyptic number.

211322120122 is a deficient number, since it is larger than the sum of its proper divisors (107045266778).

211322120122 is a wasteful number, since it uses less digits than its factorization.

211322120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461402240.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 211322120122 its reverse (221021223112), we get a palindrome (432343343234).

The spelling of 211322120122 in words is "two hundred eleven billion, three hundred twenty-two million, one hundred twenty thousand, one hundred twenty-two".