122112845 has 4 divisors (see below), whose sum is σ = 146535420. Its totient is φ = 97690272.

The previous prime is 122112841. The next prime is 122112847. The reversal of 122112845 is 548211221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25542916 + 96569929 = 5054^2 + 9827^2 .

It is a cyclic number.

It is not a de Polignac number, because 122112845 - 2² = 122112841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12211280 + ... + 12211289.

It is an arithmetic number, because the mean of its divisors is an integer number (36633855).

Almost surely, 2^122112845 is an apocalyptic number.

It is an amenable number.

122112845 is a deficient number, since it is larger than the sum of its proper divisors (24422575).

122112845 is an equidigital number, since it uses as much as digits as its factorization.

122112845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24422574.

The product of its digits is 1280, while the sum is 26.

The square root of 122112845 is about 11050.4680896331. The cubic root of 122112845 is about 496.1204358187.

The spelling of 122112845 in words is "one hundred twenty-two million, one hundred twelve thousand, eight hundred forty-five".