122225311 has 4 divisors (see below), whose sum is σ = 131627272. Its totient is φ = 112823352.

The previous prime is 122225303. The next prime is 122225339. The reversal of 122225311 is 113522221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122225311 - 2³ = 122225303 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 (122225011) 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, 4700961 + ... + 4700986.

It is an arithmetic number, because the mean of its divisors is an integer number (32906818).

Almost surely, 2^122225311 is an apocalyptic number.

122225311 is a deficient number, since it is larger than the sum of its proper divisors (9401961).

122225311 is an equidigital number, since it uses as much as digits as its factorization.

122225311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9401960.

The product of its digits is 240, while the sum is 19.

The square root of 122225311 is about 11055.5556621999. Note that the first 3 decimals coincide. The cubic root of 122225311 is about 496.2726981520.

Adding to 122225311 its reverse (113522221), we get a palindrome (235747532).

The spelling of 122225311 in words is "one hundred twenty-two million, two hundred twenty-five thousand, three hundred eleven".