12201758977 has 2 divisors, whose sum is σ = 12201758978. Its totient is φ = 12201758976.

The previous prime is 12201758939. The next prime is 12201758981. The reversal of 12201758977 is 77985710221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11932503696 + 269255281 = 109236^2 + 16409^2 .

It is a cyclic number.

It is not a de Polignac number, because 12201758977 - 2²⁷ = 12067541249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12201758977.

It is not a weakly prime, because it can be changed into another prime (12201758927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100879488 + 6100879489.

It is an arithmetic number, because the mean of its divisors is an integer number (6100879489).

Almost surely, 2^12201758977 is an apocalyptic number.

It is an amenable number.

12201758977 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201758977 is an equidigital number, since it uses as much as digits as its factorization.

12201758977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 493920, while the sum is 49.

The spelling of 12201758977 in words is "twelve billion, two hundred one million, seven hundred fifty-eight thousand, nine hundred seventy-seven".