111212231107 has 2 divisors, whose sum is σ = 111212231108. Its totient is φ = 111212231106.

The previous prime is 111212231089. The next prime is 111212231111. The reversal of 111212231107 is 701132212111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111212231107 - 2²³ = 111203842499 is a prime.

It is not a weakly prime, because it can be changed into another prime (111212231807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55606115553 + 55606115554.

It is an arithmetic number, because the mean of its divisors is an integer number (55606115554).

Almost surely, 2^111212231107 is an apocalyptic number.

111212231107 is a deficient number, since it is larger than the sum of its proper divisors (1).

111212231107 is an equidigital number, since it uses as much as digits as its factorization.

111212231107 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 22.

Adding to 111212231107 its reverse (701132212111), we get a palindrome (812344443218).

The spelling of 111212231107 in words is "one hundred eleven billion, two hundred twelve million, two hundred thirty-one thousand, one hundred seven".