122100200209 has 8 divisors (see below), whose sum is σ = 131495436072. Its totient is φ = 112705380480.

The previous prime is 122100200171. The next prime is 122100200249. The reversal of 122100200209 is 902002001221.

It can be written as a sum of positive squares in 4 ways, for example, as 39492817984 + 82607382225 = 198728^2 + 287415^2 .

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 122100200209 - 2⁷ = 122100200081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122100200249) 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, 789957 + ... + 931789.

It is an arithmetic number, because the mean of its divisors is an integer number (16436929509).

Almost surely, 2^122100200209 is an apocalyptic number.

It is an amenable number.

122100200209 is a deficient number, since it is larger than the sum of its proper divisors (9395235863).

122100200209 is a wasteful number, since it uses less digits than its factorization.

122100200209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208067.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 122100200209 in words is "one hundred twenty-two billion, one hundred million, two hundred thousand, two hundred nine".