120211749877 has 2 divisors, whose sum is σ = 120211749878. Its totient is φ = 120211749876.

The previous prime is 120211749871. The next prime is 120211749893. The reversal of 120211749877 is 778947112021.

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., 78403360036 + 41808389841 = 280006^2 + 204471^2 .

It is a cyclic number.

It is not a de Polignac number, because 120211749877 - 2¹¹ = 120211747829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120211749877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120211749871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60105874938 + 60105874939.

It is an arithmetic number, because the mean of its divisors is an integer number (60105874939).

Almost surely, 2^120211749877 is an apocalyptic number.

It is an amenable number.

120211749877 is a deficient number, since it is larger than the sum of its proper divisors (1).

120211749877 is an equidigital number, since it uses as much as digits as its factorization.

120211749877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 49.

The spelling of 120211749877 in words is "one hundred twenty billion, two hundred eleven million, seven hundred forty-nine thousand, eight hundred seventy-seven".