212023102111 has 4 divisors (see below), whose sum is σ = 224495049312. Its totient is φ = 199551154912.

The previous prime is 212023102087. The next prime is 212023102177. The reversal of 212023102111 is 111201320212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212023102111 - 2⁹ = 212023101599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212023162111) by changing a digit.

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, 6235973575 + ... + 6235973608.

It is an arithmetic number, because the mean of its divisors is an integer number (56123762328).

Almost surely, 2^212023102111 is an apocalyptic number.

212023102111 is a deficient number, since it is larger than the sum of its proper divisors (12471947201).

212023102111 is a wasteful number, since it uses less digits than its factorization.

212023102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12471947200.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212023102111 its reverse (111201320212), we get a palindrome (323224422323).

The spelling of 212023102111 in words is "two hundred twelve billion, twenty-three million, one hundred two thousand, one hundred eleven".