12120627977 has 2 divisors, whose sum is σ = 12120627978. Its totient is φ = 12120627976.

The previous prime is 12120627941. The next prime is 12120627997. The reversal of 12120627977 is 77972602121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12085924096 + 34703881 = 109936^2 + 5891^2 .

It is an emirp because it is prime and its reverse (77972602121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12120627977 - 2²² = 12116433673 is a prime.

It is a super-2 number, since 2×12120627977² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12120627997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060313988 + 6060313989.

It is an arithmetic number, because the mean of its divisors is an integer number (6060313989).

Almost surely, 2^12120627977 is an apocalyptic number.

It is an amenable number.

12120627977 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120627977 is an equidigital number, since it uses as much as digits as its factorization.

12120627977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 44.

The spelling of 12120627977 in words is "twelve billion, one hundred twenty million, six hundred twenty-seven thousand, nine hundred seventy-seven".