122140115 has 4 divisors (see below), whose sum is σ = 146568144. Its totient is φ = 97712088.

The previous prime is 122140111. The next prime is 122140147. The reversal of 122140115 is 511041221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 511041221 = 631 ⋅809891.

It is a cyclic number.

It is not a de Polignac number, because 122140115 - 2² = 122140111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122140093 and 122140102.

It is not an unprimeable number, because it can be changed into a prime (122140111) 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 3 ways as a sum of consecutive naturals, for example, 12214007 + ... + 12214016.

It is an arithmetic number, because the mean of its divisors is an integer number (36642036).

Almost surely, 2^122140115 is an apocalyptic number.

122140115 is a deficient number, since it is larger than the sum of its proper divisors (24428029).

122140115 is an equidigital number, since it uses as much as digits as its factorization.

122140115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24428028.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 122140115 is about 11051.7019051366. The cubic root of 122140115 is about 496.1573639494.

Adding to 122140115 its reverse (511041221), we get a palindrome (633181336).

The spelling of 122140115 in words is "one hundred twenty-two million, one hundred forty thousand, one hundred fifteen".