122000011209 has 36 divisors (see below), whose sum is σ = 181262720496. Its totient is φ = 79028879328.

The previous prime is 122000011183. The next prime is 122000011219. The reversal of 122000011209 is 902110000221.

It is not a de Polignac number, because 122000011209 - 2¹¹ = 122000009161 is a prime.

It is a super-2 number, since 2×122000011209² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122000011191 and 122000011200.

It is not an unprimeable number, because it can be changed into a prime (122000011219) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15015022 + ... + 15023144.

Almost surely, 2^122000011209 is an apocalyptic number.

It is an amenable number.

122000011209 is a deficient number, since it is larger than the sum of its proper divisors (59262709287).

122000011209 is an equidigital number, since it uses as much as digits as its factorization.

122000011209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8566 (or 8366 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 122000011209 in words is "one hundred twenty-two billion, eleven thousand, two hundred nine".