111212414165 has 16 divisors (see below), whose sum is σ = 139266338688. Its totient is φ = 85096140096.

The previous prime is 111212414141. The next prime is 111212414167. The reversal of 111212414165 is 561414212111.

It is a cyclic number.

It is not a de Polignac number, because 111212414165 - 2¹⁶ = 111212348629 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 (111212414167) 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, 3065462 + ... + 3101528.

It is an arithmetic number, because the mean of its divisors is an integer number (8704146168).

Almost surely, 2^111212414165 is an apocalyptic number.

It is an amenable number.

111212414165 is a deficient number, since it is larger than the sum of its proper divisors (28053924523).

111212414165 is a wasteful number, since it uses less digits than its factorization.

111212414165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62908.

The product of its digits is 1920, while the sum is 29.

Adding to 111212414165 its reverse (561414212111), we get a palindrome (672626626276).

The spelling of 111212414165 in words is "one hundred eleven billion, two hundred twelve million, four hundred fourteen thousand, one hundred sixty-five".