212112021200122 has 8 divisors (see below), whose sum is σ = 318704571484596. Its totient is φ = 105877164038592.

The previous prime is 212112021200071. The next prime is 212112021200129. The reversal of 212112021200122 is 221002120211212.

It can be written as a sum of positive squares in 2 ways, for example, as 207830022848721 + 4281998351401 = 14416311^2 + 2069299^2 .

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 212112021200122.

It is not an unprimeable number, because it can be changed into a prime (212112021200129) 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, 89423279253 + ... + 89423281624.

Almost surely, 2^{212112021200122} is an apocalyptic number.

212112021200122 is a deficient number, since it is larger than the sum of its proper divisors (106592550284474).

212112021200122 is a wasteful number, since it uses less digits than its factorization.

212112021200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178846561472.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212112021200122 its reverse (221002120211212), we get a palindrome (433114141411334).

The spelling of 212112021200122 in words is "two hundred twelve trillion, one hundred twelve billion, twenty-one million, two hundred thousand, one hundred twenty-two".