122111243 has 4 divisors (see below), whose sum is σ = 125089608. Its totient is φ = 119132880.

The previous prime is 122111219. The next prime is 122111279. The reversal of 122111243 is 342111221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342111221 = 193 ⋅1772597.

It is not a de Polignac number, because 122111243 - 2⁸ = 122110987 is a prime.

It is a super-2 number, since 2×122111243² = 29822311334010098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122114243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489121 + ... + 1489202.

It is an arithmetic number, because the mean of its divisors is an integer number (31272402).

Almost surely, 2^122111243 is an apocalyptic number.

122111243 is a deficient number, since it is larger than the sum of its proper divisors (2978365).

122111243 is an equidigital number, since it uses as much as digits as its factorization.

122111243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978364.

The product of its digits is 96, while the sum is 17.

The square root of 122111243 is about 11050.3956037782. The cubic root of 122111243 is about 496.1182662724.

Adding to 122111243 its reverse (342111221), we get a palindrome (464222464).

The spelling of 122111243 in words is "one hundred twenty-two million, one hundred eleven thousand, two hundred forty-three".