122144111 has 4 divisors (see below), whose sum is σ = 123817392. Its totient is φ = 120470832.

The previous prime is 122144093. The next prime is 122144129. The reversal of 122144111 is 111441221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111441221 = 647 ⋅172243.

It is an interprime number because it is at equal distance from previous prime (122144093) and next prime (122144129).

It is a cyclic number.

It is not a de Polignac number, because 122144111 - 2¹⁸ = 121881967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122144111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122144161) 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, 836531 + ... + 836676.

It is an arithmetic number, because the mean of its divisors is an integer number (30954348).

Almost surely, 2^122144111 is an apocalyptic number.

122144111 is a deficient number, since it is larger than the sum of its proper divisors (1673281).

122144111 is an equidigital number, since it uses as much as digits as its factorization.

122144111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673280.

The product of its digits is 64, while the sum is 17.

The square root of 122144111 is about 11051.8826902931. The cubic root of 122144111 is about 496.1627747385.

Adding to 122144111 its reverse (111441221), we get a palindrome (233585332).

The spelling of 122144111 in words is "one hundred twenty-two million, one hundred forty-four thousand, one hundred eleven".