111212016107 has 2 divisors, whose sum is σ = 111212016108. Its totient is φ = 111212016106.

The previous prime is 111212016101. The next prime is 111212016109. The reversal of 111212016107 is 701610212111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111212016107 - 2⁶ = 111212016043 is a prime.

It is a super-2 number, since 2×111212016107² (a number of 23 digits) contains 22 as substring.

Together with 111212016109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111212016101) 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, 55606008053 + 55606008054.

It is an arithmetic number, because the mean of its divisors is an integer number (55606008054).

Almost surely, 2^111212016107 is an apocalyptic number.

111212016107 is a deficient number, since it is larger than the sum of its proper divisors (1).

111212016107 is an equidigital number, since it uses as much as digits as its factorization.

111212016107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 23.

Adding to 111212016107 its reverse (701610212111), we get a palindrome (812822228218).

The spelling of 111212016107 in words is "one hundred eleven billion, two hundred twelve million, sixteen thousand, one hundred seven".