1022001020987 has 2 divisors, whose sum is σ = 1022001020988. Its totient is φ = 1022001020986.

The previous prime is 1022001020851. The next prime is 1022001021047. The reversal of 1022001020987 is 7890201002201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1022001020987 - 2¹⁴ = 1022001004603 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022001320987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511000510493 + 511000510494.

It is an arithmetic number, because the mean of its divisors is an integer number (511000510494).

Almost surely, 2^{1022001020987} is an apocalyptic number.

1022001020987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022001020987 is an equidigital number, since it uses as much as digits as its factorization.

1022001020987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 1022001020987 in words is "one trillion, twenty-two billion, one million, twenty thousand, nine hundred eighty-seven".