111022212011 has 2 divisors, whose sum is σ = 111022212012. Its totient is φ = 111022212010.

The previous prime is 111022211999. The next prime is 111022212029. The reversal of 111022212011 is 110212220111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111022212011 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (111022212311) 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, 55511106005 + 55511106006.

It is an arithmetic number, because the mean of its divisors is an integer number (55511106006).

Almost surely, 2^111022212011 is an apocalyptic number.

111022212011 is a deficient number, since it is larger than the sum of its proper divisors (1).

111022212011 is an equidigital number, since it uses as much as digits as its factorization.

111022212011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111022212011 its reverse (110212220111), we get a palindrome (221234432122).

The spelling of 111022212011 in words is "one hundred eleven billion, twenty-two million, two hundred twelve thousand, eleven".