122404023205111 has 4 divisors (see below), whose sum is σ = 122605677280192. Its totient is φ = 122202369130032.

The previous prime is 122404023205081. The next prime is 122404023205117. The reversal of 122404023205111 is 111502320404221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 122404023205111 - 2³⁹ = 121854267391223 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 122404023205111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122404023205117) 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, 100827036630 + ... + 100827037843.

It is an arithmetic number, because the mean of its divisors is an integer number (30651419320048).

Almost surely, 2^{122404023205111} is an apocalyptic number.

122404023205111 is a deficient number, since it is larger than the sum of its proper divisors (201654075081).

122404023205111 is an equidigital number, since it uses as much as digits as its factorization.

122404023205111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201654075080.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 122404023205111 its reverse (111502320404221), we get a palindrome (233906343609332).

The spelling of 122404023205111 in words is "one hundred twenty-two trillion, four hundred four billion, twenty-three million, two hundred five thousand, one hundred eleven".