122043042111 has 4 divisors (see below), whose sum is σ = 162724056152. Its totient is φ = 81362028072.

The previous prime is 122043042097. The next prime is 122043042197. The reversal of 122043042111 is 111240340221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 122043042111 - 2⁷ = 122043041983 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 (122043041111) 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, 20340507016 + ... + 20340507021.

It is an arithmetic number, because the mean of its divisors is an integer number (40681014038).

Almost surely, 2^122043042111 is an apocalyptic number.

122043042111 is a deficient number, since it is larger than the sum of its proper divisors (40681014041).

122043042111 is an equidigital number, since it uses as much as digits as its factorization.

122043042111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40681014040.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 122043042111 its reverse (111240340221), we get a palindrome (233283382332).

The spelling of 122043042111 in words is "one hundred twenty-two billion, forty-three million, forty-two thousand, one hundred eleven".