212221102210202 has 8 divisors (see below), whose sum is σ = 318334819552500. Its totient is φ = 106109495692704.

The previous prime is 212221102210181. The next prime is 212221102210207. The reversal of 212221102210202 is 202012201122212.

It can be written as a sum of positive squares in 2 ways, for example, as 212163665773921 + 57436436281 = 14565839^2 + 239659^2 .

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

It is not an unprimeable number, because it can be changed into a prime (212221102210207) 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, 527454827 + ... + 527857022.

Almost surely, 2^{212221102210202} is an apocalyptic number.

212221102210202 is a deficient number, since it is larger than the sum of its proper divisors (106113717342298).

212221102210202 is a wasteful number, since it uses less digits than its factorization.

212221102210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055412400.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212221102210202 its reverse (202012201122212), we get a palindrome (414233303332414).

The spelling of 212221102210202 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred two million, two hundred ten thousand, two hundred two".