111422005 has 16 divisors (see below), whose sum is σ = 141611904. Its totient is φ = 83983680.

The previous prime is 111421957. The next prime is 111422009. The reversal of 111422005 is 500224111.

It is not a de Polignac number, because 111422005 - 2²³ = 103033397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111422005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111422009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475 + ... + 14935.

It is an arithmetic number, because the mean of its divisors is an integer number (8850744).

Almost surely, 2^111422005 is an apocalyptic number.

It is an amenable number.

111422005 is a deficient number, since it is larger than the sum of its proper divisors (30189899).

111422005 is a wasteful number, since it uses less digits than its factorization.

111422005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14556.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 111422005 is about 10555.6622246072. The cubic root of 111422005 is about 481.1978257937.

Adding to 111422005 its reverse (500224111), we get a palindrome (611646116).

The spelling of 111422005 in words is "one hundred eleven million, four hundred twenty-two thousand, five".