212121112222202 has 8 divisors (see below), whose sum is σ = 318718231013556. Its totient is φ = 105881701884352.

The previous prime is 212121112222199. The next prime is 212121112222241. The reversal of 212121112222202 is 202222211121212.

212121112222202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 204028913609161 + 8092198613041 = 14283869^2 + 2844679^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89427111893 + ... + 89427114264.

Almost surely, 2^{212121112222202} is an apocalyptic number.

212121112222202 is a deficient number, since it is larger than the sum of its proper divisors (106597118791354).

212121112222202 is a wasteful number, since it uses less digits than its factorization.

212121112222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178854226752.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212121112222202 its reverse (202222211121212), we get a palindrome (414343323343414).

The spelling of 212121112222202 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred twelve million, two hundred twenty-two thousand, two hundred two".