2110221109987 has 2 divisors, whose sum is σ = 2110221109988. Its totient is φ = 2110221109986.

The previous prime is 2110221109957. The next prime is 2110221110003. The reversal of 2110221109987 is 7899011220112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2110221109987 - 2¹⁹ = 2110220585699 is a prime.

It is a super-2 number, since 2×2110221109987² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2110221109937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055110554993 + 1055110554994.

It is an arithmetic number, because the mean of its divisors is an integer number (1055110554994).

Almost surely, 2^{2110221109987} is an apocalyptic number.

2110221109987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110221109987 is an equidigital number, since it uses as much as digits as its factorization.

2110221109987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 43.

The spelling of 2110221109987 in words is "two trillion, one hundred ten billion, two hundred twenty-one million, one hundred nine thousand, nine hundred eighty-seven".