12201112019977 has 2 divisors, whose sum is σ = 12201112019978. Its totient is φ = 12201112019976.

The previous prime is 12201112019963. The next prime is 12201112020023. The reversal of 12201112019977 is 77991021110221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10422185612281 + 1778926407696 = 3228341^2 + 1333764^2 .

It is an emirp because it is prime and its reverse (77991021110221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12201112019977 - 2²⁷ = 12200977802249 is a prime.

It is not a weakly prime, because it can be changed into another prime (12201112010977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100556009988 + 6100556009989.

It is an arithmetic number, because the mean of its divisors is an integer number (6100556009989).

Almost surely, 2^{12201112019977} is an apocalyptic number.

It is an amenable number.

12201112019977 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201112019977 is an equidigital number, since it uses as much as digits as its factorization.

12201112019977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 43.

The spelling of 12201112019977 in words is "twelve trillion, two hundred one billion, one hundred twelve million, nineteen thousand, nine hundred seventy-seven".