122125155 has 8 divisors (see below), whose sum is σ = 195400272. Its totient is φ = 65133408.

The previous prime is 122125153. The next prime is 122125163. The reversal of 122125155 is 551521221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122125155 - 2¹ = 122125153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122125153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4070824 + ... + 4070853.

It is an arithmetic number, because the mean of its divisors is an integer number (24425034).

Almost surely, 2^122125155 is an apocalyptic number.

122125155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122125155 is a deficient number, since it is larger than the sum of its proper divisors (73275117).

122125155 is an equidigital number, since it uses as much as digits as its factorization.

122125155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8141685.

The product of its digits is 1000, while the sum is 24.

The square root of 122125155 is about 11051.0250655765. The cubic root of 122125155 is about 496.1371062936.

Adding to 122125155 its reverse (551521221), we get a palindrome (673646376).

The spelling of 122125155 in words is "one hundred twenty-two million, one hundred twenty-five thousand, one hundred fifty-five".