212012011202122 has 8 divisors (see below), whose sum is σ = 318199430394756. Its totient is φ = 105945534403872.

The previous prime is 212012011202113. The next prime is 212012011202129. The reversal of 212012011202122 is 221202110210212.

It can be written as a sum of positive squares in 2 ways, for example, as 149050182549321 + 62961828652801 = 12208611^2 + 7934849^2 .

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 212012011202122.

It is not an unprimeable number, because it can be changed into a prime (212012011202129) 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, 30235594213 + ... + 30235601224.

Almost surely, 2^{212012011202122} is an apocalyptic number.

212012011202122 is a deficient number, since it is larger than the sum of its proper divisors (106187419192634).

212012011202122 is a wasteful number, since it uses less digits than its factorization.

212012011202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60471197192.

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

Adding to 212012011202122 its reverse (221202110210212), we get a palindrome (433214121412334).

The spelling of 212012011202122 in words is "two hundred twelve trillion, twelve billion, eleven million, two hundred two thousand, one hundred twenty-two".