1021202111087 has 2 divisors, whose sum is σ = 1021202111088. Its totient is φ = 1021202111086.

The previous prime is 1021202110997. The next prime is 1021202111099. The reversal of 1021202111087 is 7801112021201.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7801112021201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1021202111087 - 2²⁴ = 1021185333871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021202111687) 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, 510601055543 + 510601055544.

It is an arithmetic number, because the mean of its divisors is an integer number (510601055544).

Almost surely, 2^{1021202111087} is an apocalyptic number.

1021202111087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021202111087 is an equidigital number, since it uses as much as digits as its factorization.

1021202111087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

Adding to 1021202111087 its reverse (7801112021201), we get a palindrome (8822314132288).

The spelling of 1021202111087 in words is "one trillion, twenty-one billion, two hundred two million, one hundred eleven thousand, eighty-seven".