122865201 has 8 divisors (see below), whose sum is σ = 182022560. Its totient is φ = 81910116.

The previous prime is 122865173. The next prime is 122865247. The reversal of 122865201 is 102568221.

It is a happy number.

122865201 is a `hidden beast` number, since 1 + 2 + 2 + 8 + 652 + 0 + 1 = 666.

It is not a de Polignac number, because 122865201 - 2²¹ = 120768049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4550563 = 122865201 / (1 + 2 + 2 + 8 + 6 + 5 + 2 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122865901) 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, 2275255 + ... + 2275308.

It is an arithmetic number, because the mean of its divisors is an integer number (22752820).

Almost surely, 2^122865201 is an apocalyptic number.

It is an amenable number.

122865201 is a deficient number, since it is larger than the sum of its proper divisors (59157359).

122865201 is an equidigital number, since it uses as much as digits as its factorization.

122865201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550572 (or 4550566 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 122865201 is about 11084.4576321983. The cubic root of 122865201 is about 497.1372418467.

The spelling of 122865201 in words is "one hundred twenty-two million, eight hundred sixty-five thousand, two hundred one".