122225111 has 4 divisors (see below), whose sum is σ = 126439800. Its totient is φ = 118010424.

The previous prime is 122225101. The next prime is 122225113. The reversal of 122225111 is 111522221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111522221 = 31 ⋅3597491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122225111 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 122225111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122225113) 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 3 ways as a sum of consecutive naturals, for example, 2107301 + ... + 2107358.

It is an arithmetic number, because the mean of its divisors is an integer number (31609950).

Almost surely, 2^122225111 is an apocalyptic number.

122225111 is a deficient number, since it is larger than the sum of its proper divisors (4214689).

122225111 is an equidigital number, since it uses as much as digits as its factorization.

122225111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214688.

The product of its digits is 80, while the sum is 17.

The square root of 122225111 is about 11055.5466169701. The cubic root of 122225111 is about 496.2724274645.

Adding to 122225111 its reverse (111522221), we get a palindrome (233747332).

The spelling of 122225111 in words is "one hundred twenty-two million, two hundred twenty-five thousand, one hundred eleven".