12201950077 has 2 divisors, whose sum is σ = 12201950078. Its totient is φ = 12201950076.

The previous prime is 12201950063. The next prime is 12201950177. The reversal of 12201950077 is 77005910221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6656764921 + 5545185156 = 81589^2 + 74466^2 .

It is a cyclic number.

It is not a de Polignac number, because 12201950077 - 2¹⁵ = 12201917309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201950177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100975038 + 6100975039.

It is an arithmetic number, because the mean of its divisors is an integer number (6100975039).

Almost surely, 2^12201950077 is an apocalyptic number.

It is an amenable number.

12201950077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201950077 is an equidigital number, since it uses as much as digits as its factorization.

12201950077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 34.

The spelling of 12201950077 in words is "twelve billion, two hundred one million, nine hundred fifty thousand, seventy-seven".