123210123221209 has 8 divisors (see below), whose sum is σ = 128569754011392. Its totient is φ = 117850714840320.

The previous prime is 123210123221161. The next prime is 123210123221249. The reversal of 123210123221209 is 902122321012321.

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 123210123221209 - 2³⁷ = 123072684267737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123210123221249) 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, 54469777 + ... + 56686654.

It is an arithmetic number, because the mean of its divisors is an integer number (16071219251424).

Almost surely, 2^{123210123221209} is an apocalyptic number.

It is an amenable number.

123210123221209 is a deficient number, since it is larger than the sum of its proper divisors (5359630790183).

123210123221209 is a wasteful number, since it uses less digits than its factorization.

123210123221209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111204647.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 123210123221209 in words is "one hundred twenty-three trillion, two hundred ten billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred nine".