212112210021202 has 8 divisors (see below), whose sum is σ = 318175013313612. Its totient is φ = 106053872250000.

The previous prime is 212112210021193. The next prime is 212112210021263. The reversal of 212112210021202 is 202120012211212.

It can be written as a sum of positive squares in 2 ways, for example, as 179017950898081 + 33094259123121 = 13379759^2 + 5752761^2 .

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 212112210021202.

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, 1116261549 + ... + 1116451552.

Almost surely, 2^{212112210021202} is an apocalyptic number.

212112210021202 is a deficient number, since it is larger than the sum of its proper divisors (106062803292410).

212112210021202 is a wasteful number, since it uses less digits than its factorization.

212112210021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232760604.

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

Adding to 212112210021202 its reverse (202120012211212), we get a palindrome (414232222232414).

The spelling of 212112210021202 in words is "two hundred twelve trillion, one hundred twelve billion, two hundred ten million, twenty-one thousand, two hundred two".