2111021110087 has 2 divisors, whose sum is σ = 2111021110088. Its totient is φ = 2111021110086.

The previous prime is 2111021110067. The next prime is 2111021110111. The reversal of 2111021110087 is 7800111201112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111021110087 - 2¹¹ = 2111021108039 is a prime.

It is a super-3 number, since 3×2111021110087³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111021110007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055510555043 + 1055510555044.

It is an arithmetic number, because the mean of its divisors is an integer number (1055510555044).

Almost surely, 2^{2111021110087} is an apocalyptic number.

2111021110087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111021110087 is an equidigital number, since it uses as much as digits as its factorization.

2111021110087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 25.

Adding to 2111021110087 its reverse (7800111201112), we get a palindrome (9911132311199).

The spelling of 2111021110087 in words is "two trillion, one hundred eleven billion, twenty-one million, one hundred ten thousand, eighty-seven".