111422125 has 8 divisors (see below), whose sum is σ = 139054968. Its totient is φ = 89137600.

The previous prime is 111422123. The next prime is 111422141. The reversal of 111422125 is 521224111.

It can be written as a sum of positive squares in 4 ways, for example, as 34316164 + 77105961 = 5858^2 + 8781^2 .

It is not a de Polignac number, because 111422125 - 2¹ = 111422123 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 (111422123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445564 + ... + 445813.

It is an arithmetic number, because the mean of its divisors is an integer number (17381871).

Almost surely, 2^111422125 is an apocalyptic number.

It is an amenable number.

111422125 is a deficient number, since it is larger than the sum of its proper divisors (27632843).

111422125 is an frugal number, since it uses more digits than its factorization.

111422125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891392 (or 891382 counting only the distinct ones).

The product of its digits is 160, while the sum is 19.

The square root of 111422125 is about 10555.6679087588. The cubic root of 111422125 is about 481.1979985415.

Adding to 111422125 its reverse (521224111), we get a palindrome (632646236).

The spelling of 111422125 in words is "one hundred eleven million, four hundred twenty-two thousand, one hundred twenty-five".