212102202202 has 24 divisors (see below), whose sum is σ = 355438602036. Its totient is φ = 94829592000.

The previous prime is 212102202197. The next prime is 212102202223. The reversal of 212102202202 is 202202201212.

It can be written as a sum of positive squares in 2 ways, for example, as 137508214041 + 74593988161 = 370821^2 + 273119^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7169299 + ... + 7198822.

Almost surely, 2^212102202202 is an apocalyptic number.

212102202202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212102202202 is a deficient number, since it is larger than the sum of its proper divisors (143336399834).

212102202202 is a wasteful number, since it uses less digits than its factorization.

212102202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14368206 (or 14368195 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212102202202 its reverse (202202201212), we get a palindrome (414304403414).

The spelling of 212102202202 in words is "two hundred twelve billion, one hundred two million, two hundred two thousand, two hundred two".