212012012010122 has 8 divisors (see below), whose sum is σ = 318018086889636. Its totient is φ = 106005983046912.

The previous prime is 212012012010103. The next prime is 212012012010163. The reversal of 212012012010122 is 221010210210212.

It can be written as a sum of positive squares in 2 ways, for example, as 209394473079961 + 2617538930161 = 14470469^2 + 1617881^2 .

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 212012012010122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4529258 + ... + 21084074.

Almost surely, 2^{212012012010122} is an apocalyptic number.

212012012010122 is a deficient number, since it is larger than the sum of its proper divisors (106006074879514).

212012012010122 is a wasteful number, since it uses less digits than its factorization.

212012012010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22958152.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212012012010122 its reverse (221010210210212), we get a palindrome (433022222220334).

The spelling of 212012012010122 in words is "two hundred twelve trillion, twelve billion, twelve million, ten thousand, one hundred twenty-two".