212240222111 has 2 divisors, whose sum is σ = 212240222112. Its totient is φ = 212240222110.

The previous prime is 212240222101. The next prime is 212240222123. The reversal of 212240222111 is 111222042212.

It is a happy number.

212240222111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212240222111 is a prime.

It is a super-2 number, since 2×212240222111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212240222101) 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 as a sum of consecutive naturals, namely, 106120111055 + 106120111056.

It is an arithmetic number, because the mean of its divisors is an integer number (106120111056).

Almost surely, 2^212240222111 is an apocalyptic number.

212240222111 is a deficient number, since it is larger than the sum of its proper divisors (1).

212240222111 is an equidigital number, since it uses as much as digits as its factorization.

212240222111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212240222111 its reverse (111222042212), we get a palindrome (323462264323).

The spelling of 212240222111 in words is "two hundred twelve billion, two hundred forty million, two hundred twenty-two thousand, one hundred eleven".