1020022019977 has 2 divisors, whose sum is σ = 1020022019978. Its totient is φ = 1020022019976.

The previous prime is 1020022019953. The next prime is 1020022020047. The reversal of 1020022019977 is 7799102200201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 598919662201 + 421102357776 = 773899^2 + 648924^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020022019977 - 2¹¹ = 1020022017929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020022019477) 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, 510011009988 + 510011009989.

It is an arithmetic number, because the mean of its divisors is an integer number (510011009989).

Almost surely, 2^{1020022019977} is an apocalyptic number.

It is an amenable number.

1020022019977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020022019977 is an equidigital number, since it uses as much as digits as its factorization.

1020022019977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 40.

The spelling of 1020022019977 in words is "one trillion, twenty billion, twenty-two million, nineteen thousand, nine hundred seventy-seven".