122125151 has 4 divisors (see below), whose sum is σ = 126064704. Its totient is φ = 118185600.

The previous prime is 122125109. The next prime is 122125153. The reversal of 122125151 is 151521221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151521221 = 17 ⋅8913013.

It is a cyclic number.

It is not a de Polignac number, because 122125151 - 2²² = 117930847 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 (122125153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969730 + ... + 1969791.

It is an arithmetic number, because the mean of its divisors is an integer number (31516176).

Almost surely, 2^122125151 is an apocalyptic number.

122125151 is a deficient number, since it is larger than the sum of its proper divisors (3939553).

122125151 is an equidigital number, since it uses as much as digits as its factorization.

122125151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939552.

The product of its digits is 200, while the sum is 20.

The square root of 122125151 is about 11051.0248845978. The cubic root of 122125151 is about 496.1371008769.

Adding to 122125151 its reverse (151521221), we get a palindrome (273646372).

The spelling of 122125151 in words is "one hundred twenty-two million, one hundred twenty-five thousand, one hundred fifty-one".