2167187095921 has 12 divisors (see below), whose sum is σ = 2215344230208. Its totient is φ = 2120055894152.

The previous prime is 2167187095859. The next prime is 2167187095967. The reversal of 2167187095921 is 1295907817612.

It is not a de Polignac number, because 2167187095921 - 2²⁵ = 2167153541489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2167187095621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4375140 + ... + 4845226.

It is an arithmetic number, because the mean of its divisors is an integer number (184612019184).

Almost surely, 2^{2167187095921} is an apocalyptic number.

It is an amenable number.

2167187095921 is a deficient number, since it is larger than the sum of its proper divisors (48157134287).

2167187095921 is an equidigital number, since it uses as much as digits as its factorization.

2167187095921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472268 (or 472221 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 58.

The spelling of 2167187095921 in words is "two trillion, one hundred sixty-seven billion, one hundred eighty-seven million, ninety-five thousand, nine hundred twenty-one".