122171267405 has 32 divisors (see below), whose sum is σ = 167181200640. Its totient is φ = 84838842880.

The previous prime is 122171267401. The next prime is 122171267417. The reversal of 122171267405 is 504762171221.

It is a happy number.

It is not a de Polignac number, because 122171267405 - 2² = 122171267401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122171267401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 634919 + ... + 804651.

It is an arithmetic number, because the mean of its divisors is an integer number (5224412520).

Almost surely, 2^122171267405 is an apocalyptic number.

It is an amenable number.

122171267405 is a deficient number, since it is larger than the sum of its proper divisors (45009933235).

122171267405 is a wasteful number, since it uses less digits than its factorization.

122171267405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170341.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 122171267405 in words is "one hundred twenty-two billion, one hundred seventy-one million, two hundred sixty-seven thousand, four hundred five".