20222002019977 has 2 divisors, whose sum is σ = 20222002019978. Its totient is φ = 20222002019976.

The previous prime is 20222002019959. The next prime is 20222002019981. The reversal of 20222002019977 is 77991020022202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10903659680761 + 9318342339216 = 3302069^2 + 3052596^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20222002019977 is a prime.

It is not a weakly prime, because it can be changed into another prime (20222002019377) 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, 10111001009988 + 10111001009989.

It is an arithmetic number, because the mean of its divisors is an integer number (10111001009989).

Almost surely, 2^{20222002019977} is an apocalyptic number.

It is an amenable number.

20222002019977 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222002019977 is an equidigital number, since it uses as much as digits as its factorization.

20222002019977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 20222002019977 in words is "twenty trillion, two hundred twenty-two billion, two million, nineteen thousand, nine hundred seventy-seven".