12200870977 has 2 divisors, whose sum is σ = 12200870978. Its totient is φ = 12200870976.

The previous prime is 12200870971. The next prime is 12200871029. The reversal of 12200870977 is 77907800221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12144260401 + 56610576 = 110201^2 + 7524^2 .

It is an emirp because it is prime and its reverse (77907800221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12200870977 - 2¹⁹ = 12200346689 is a prime.

It is a super-2 number, since 2×12200870977² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12200870971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100435488 + 6100435489.

It is an arithmetic number, because the mean of its divisors is an integer number (6100435489).

Almost surely, 2^12200870977 is an apocalyptic number.

It is an amenable number.

12200870977 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200870977 is an equidigital number, since it uses as much as digits as its factorization.

12200870977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 43.

The spelling of 12200870977 in words is "twelve billion, two hundred million, eight hundred seventy thousand, nine hundred seventy-seven".