12201177709 has 16 divisors (see below), whose sum is σ = 13992755200. Its totient is φ = 10421808624.

The previous prime is 12201177697. The next prime is 12201177719. The reversal of 12201177709 is 90777110221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12201177709 - 2¹³ = 12201169517 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 (12201177719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2627812 + ... + 2632450.

It is an arithmetic number, because the mean of its divisors is an integer number (874547200).

Almost surely, 2^12201177709 is an apocalyptic number.

It is an amenable number.

12201177709 is a deficient number, since it is larger than the sum of its proper divisors (1791577491).

12201177709 is an equidigital number, since it uses as much as digits as its factorization.

12201177709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872.

The product of its (nonzero) digits is 12348, while the sum is 37.

The spelling of 12201177709 in words is "twelve billion, two hundred one million, one hundred seventy-seven thousand, seven hundred nine".