11200122209 has 4 divisors (see below), whose sum is σ = 11200416816. Its totient is φ = 11199827604.

The previous prime is 11200122203. The next prime is 11200122217. The reversal of 11200122209 is 90222100211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90222100211 = 43 ⋅2098188377.

It is a cyclic number.

It is not a de Polignac number, because 11200122209 - 2⁸ = 11200121953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11200122203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80039 + ... + 169724.

It is an arithmetic number, because the mean of its divisors is an integer number (2800104204).

Almost surely, 2^11200122209 is an apocalyptic number.

It is an amenable number.

11200122209 is a deficient number, since it is larger than the sum of its proper divisors (294607).

11200122209 is an equidigital number, since it uses as much as digits as its factorization.

11200122209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294606.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 11200122209 in words is "eleven billion, two hundred million, one hundred twenty-two thousand, two hundred nine".