111122212007 has 2 divisors, whose sum is σ = 111122212008. Its totient is φ = 111122212006.

The previous prime is 111122211979. The next prime is 111122212037. The reversal of 111122212007 is 700212221111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111122212007 - 2²⁶ = 111055103143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111122212007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111122212037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561106003 + 55561106004.

It is an arithmetic number, because the mean of its divisors is an integer number (55561106004).

Almost surely, 2^111122212007 is an apocalyptic number.

111122212007 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122212007 is an equidigital number, since it uses as much as digits as its factorization.

111122212007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 111122212007 its reverse (700212221111), we get a palindrome (811334433118).

The spelling of 111122212007 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred twelve thousand, seven".