122100173 has 8 divisors (see below), whose sum is σ = 134700216. Its totient is φ = 109958400.

The previous prime is 122100157. The next prime is 122100193. The reversal of 122100173 is 371001221.

It can be written as a sum of positive squares in 4 ways, for example, as 14002564 + 108097609 = 3742^2 + 10397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122100173 - 2⁴ = 122100157 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 (122100133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114008 + ... + 115073.

It is an arithmetic number, because the mean of its divisors is an integer number (16837527).

Almost surely, 2^122100173 is an apocalyptic number.

122100173 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

122100173 is a deficient number, since it is larger than the sum of its proper divisors (12600043).

122100173 is a wasteful number, since it uses less digits than its factorization.

122100173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229135.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 122100173 is about 11049.8947053807. The cubic root of 122100173 is about 496.1032739451.

Adding to 122100173 its reverse (371001221), we get a palindrome (493101394).

The spelling of 122100173 in words is "one hundred twenty-two million, one hundred thousand, one hundred seventy-three".