12200077 has 4 divisors (see below), whose sum is σ = 12219196. Its totient is φ = 12180960.

The previous prime is 12200063. The next prime is 12200117. The reversal of 12200077 is 77000221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9357481 + 2842596 = 3059^2 + 1686^2 .

It is a cyclic number.

It is not a de Polignac number, because 12200077 - 2⁷ = 12199949 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 (12200477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8568 + ... + 9889.

It is an arithmetic number, because the mean of its divisors is an integer number (3054799).

Almost surely, 2^12200077 is an apocalyptic number.

It is an amenable number.

12200077 is a deficient number, since it is larger than the sum of its proper divisors (19119).

12200077 is an equidigital number, since it uses as much as digits as its factorization.

12200077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19118.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 12200077 is about 3492.8608618151. The cubic root of 12200077 is about 230.2082361122.

Adding to 12200077 its reverse (77000221), we get a palindrome (89200298).

The spelling of 12200077 in words is "twelve million, two hundred thousand, seventy-seven".