212303122111 has 8 divisors (see below), whose sum is σ = 215919912384. Its totient is φ = 208690732320.

The previous prime is 212303122093. The next prime is 212303122123. The reversal of 212303122111 is 111221303212.

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

It is a cyclic number.

It is not a de Polignac number, because 212303122111 - 2²⁷ = 212168904383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212303129111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002736 + ... + 1195861.

It is an arithmetic number, because the mean of its divisors is an integer number (26989989048).

Almost surely, 2^212303122111 is an apocalyptic number.

212303122111 is a deficient number, since it is larger than the sum of its proper divisors (3616790273).

212303122111 is a wasteful number, since it uses less digits than its factorization.

212303122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200241.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212303122111 its reverse (111221303212), we get a palindrome (323524425323).

The spelling of 212303122111 in words is "two hundred twelve billion, three hundred three million, one hundred twenty-two thousand, one hundred eleven".