2121141252887 has 4 divisors (see below), whose sum is σ = 2121153527640. Its totient is φ = 2121128978136.

The previous prime is 2121141252863. The next prime is 2121141252913. The reversal of 2121141252887 is 7882521411212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2121141252887 - 2¹² = 2121141248791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121141252827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5874413 + ... + 6225030.

It is an arithmetic number, because the mean of its divisors is an integer number (530288381910).

Almost surely, 2^{2121141252887} is an apocalyptic number.

2121141252887 is a deficient number, since it is larger than the sum of its proper divisors (12274753).

2121141252887 is a wasteful number, since it uses less digits than its factorization.

2121141252887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12274752.

The product of its digits is 143360, while the sum is 44.

The spelling of 2121141252887 in words is "two trillion, one hundred twenty-one billion, one hundred forty-one million, two hundred fifty-two thousand, eight hundred eighty-seven".