2121211019087 has 2 divisors, whose sum is σ = 2121211019088. Its totient is φ = 2121211019086.

The previous prime is 2121211019077. The next prime is 2121211019093. The reversal of 2121211019087 is 7809101121212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121211019087 - 2⁴ = 2121211019071 is a prime.

It is a super-3 number, since 3×2121211019087³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121211019077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060605509543 + 1060605509544.

It is an arithmetic number, because the mean of its divisors is an integer number (1060605509544).

Almost surely, 2^{2121211019087} is an apocalyptic number.

2121211019087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121211019087 is an equidigital number, since it uses as much as digits as its factorization.

2121211019087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 35.

The spelling of 2121211019087 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, nineteen thousand, eighty-seven".