2110021111987 has 2 divisors, whose sum is σ = 2110021111988. Its totient is φ = 2110021111986.

The previous prime is 2110021111937. The next prime is 2110021112081. The reversal of 2110021111987 is 7891111200112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2110021111987 - 2⁷ = 2110021111859 is a prime.

It is not a weakly prime, because it can be changed into another prime (2110021111937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055010555993 + 1055010555994.

It is an arithmetic number, because the mean of its divisors is an integer number (1055010555994).

Almost surely, 2^{2110021111987} is an apocalyptic number.

2110021111987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110021111987 is an equidigital number, since it uses as much as digits as its factorization.

2110021111987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 34.

The spelling of 2110021111987 in words is "two trillion, one hundred ten billion, twenty-one million, one hundred eleven thousand, nine hundred eighty-seven".