1012222001977 has 2 divisors, whose sum is σ = 1012222001978. Its totient is φ = 1012222001976.

The previous prime is 1012222001953. The next prime is 1012222002149. The reversal of 1012222001977 is 7791002222101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 632770929961 + 379451072016 = 795469^2 + 615996^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012222001977 - 2¹⁹ = 1012221477689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012222007977) 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 as a sum of consecutive naturals, namely, 506111000988 + 506111000989.

It is an arithmetic number, because the mean of its divisors is an integer number (506111000989).

Almost surely, 2^{1012222001977} is an apocalyptic number.

It is an amenable number.

1012222001977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012222001977 is an equidigital number, since it uses as much as digits as its factorization.

1012222001977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 1012222001977 in words is "one trillion, twelve billion, two hundred twenty-two million, one thousand, nine hundred seventy-seven".