212023312102 has 16 divisors (see below), whose sum is σ = 379271515392. Its totient is φ = 86916388680.

The previous prime is 212023312069. The next prime is 212023312117. The reversal of 212023312102 is 201213320212.

It is a self number, because there is not a number n which added to its sum of digits gives 212023312102.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 329228424 + ... + 329229067.

It is an arithmetic number, because the mean of its divisors is an integer number (23704469712).

Almost surely, 2^212023312102 is an apocalyptic number.

212023312102 is a deficient number, since it is larger than the sum of its proper divisors (167248203290).

212023312102 is a wasteful number, since it uses less digits than its factorization.

212023312102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658457523.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212023312102 its reverse (201213320212), we get a palindrome (413236632314).

The spelling of 212023312102 in words is "two hundred twelve billion, twenty-three million, three hundred twelve thousand, one hundred two".