122759121 has 4 divisors (see below), whose sum is σ = 163678832. Its totient is φ = 81839412.

The previous prime is 122759113. The next prime is 122759129. The reversal of 122759121 is 121957221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121957221 = 3 ⋅40652407.

It is an interprime number because it is at equal distance from previous prime (122759113) and next prime (122759129).

It is not a de Polignac number, because 122759121 - 2³ = 122759113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122759129) 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, 20459851 + ... + 20459856.

It is an arithmetic number, because the mean of its divisors is an integer number (40919708).

Almost surely, 2^122759121 is an apocalyptic number.

It is an amenable number.

122759121 is a deficient number, since it is larger than the sum of its proper divisors (40919711).

122759121 is an equidigital number, since it uses as much as digits as its factorization.

122759121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40919710.

The product of its digits is 2520, while the sum is 30.

The square root of 122759121 is about 11079.6715204017. The cubic root of 122759121 is about 496.9941270002.

The spelling of 122759121 in words is "one hundred twenty-two million, seven hundred fifty-nine thousand, one hundred twenty-one".