212202212111 has 16 divisors (see below), whose sum is σ = 220760561760. Its totient is φ = 203727605760.

The previous prime is 212202212093. The next prime is 212202212141. The reversal of 212202212111 is 111212202212.

212202212111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212202212111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212202212111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202212141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13833716 + ... + 13849046.

It is an arithmetic number, because the mean of its divisors is an integer number (13797535110).

Almost surely, 2^212202212111 is an apocalyptic number.

212202212111 is a deficient number, since it is larger than the sum of its proper divisors (8558349649).

212202212111 is a wasteful number, since it uses less digits than its factorization.

212202212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18026.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212202212111 its reverse (111212202212), we get a palindrome (323414414323).

It can be divided in two parts, 212202212 and 111, that multiplied together give a palindrome (23554445532).

The spelling of 212202212111 in words is "two hundred twelve billion, two hundred two million, two hundred twelve thousand, one hundred eleven".