20122036510777 has 4 divisors (see below), whose sum is σ = 20124030183460. Its totient is φ = 20120042838096.

The previous prime is 20122036510747. The next prime is 20122036510799. The reversal of 20122036510777 is 77701563022102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10740931256896 + 9381105253881 = 3277336^2 + 3062859^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122036510777 - 2³⁹ = 19572280696889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122036510717) 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 in 3 ways as a sum of consecutive naturals, for example, 996821202 + ... + 996841387.

It is an arithmetic number, because the mean of its divisors is an integer number (5031007545865).

Almost surely, 2^{20122036510777} is an apocalyptic number.

It is an amenable number.

20122036510777 is a deficient number, since it is larger than the sum of its proper divisors (1993672683).

20122036510777 is a wasteful number, since it uses less digits than its factorization.

20122036510777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993672682.

The product of its (nonzero) digits is 246960, while the sum is 43.

Adding to 20122036510777 its reverse (77701563022102), we get a palindrome (97823599532879).

The spelling of 20122036510777 in words is "twenty trillion, one hundred twenty-two billion, thirty-six million, five hundred ten thousand, seven hundred seventy-seven".