1002022201987 has 2 divisors, whose sum is σ = 1002022201988. Its totient is φ = 1002022201986.

The previous prime is 1002022201931. The next prime is 1002022202017. The reversal of 1002022201987 is 7891022202001.

1002022201987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002022201987 - 2¹⁵ = 1002022169219 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002022201907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501011100993 + 501011100994.

It is an arithmetic number, because the mean of its divisors is an integer number (501011100994).

Almost surely, 2^{1002022201987} is an apocalyptic number.

1002022201987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002022201987 is an equidigital number, since it uses as much as digits as its factorization.

1002022201987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

Adding to 1002022201987 its reverse (7891022202001), we get a palindrome (8893044403988).

The spelling of 1002022201987 in words is "one trillion, two billion, twenty-two million, two hundred one thousand, nine hundred eighty-seven".