2175221052841 has 2 divisors, whose sum is σ = 2175221052842. Its totient is φ = 2175221052840.

The previous prime is 2175221052757. The next prime is 2175221052857. The reversal of 2175221052841 is 1482501225712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1766695547241 + 408525505600 = 1329171^2 + 639160^2 .

It is a cyclic number.

It is not a de Polignac number, because 2175221052841 - 2²⁵ = 2175187498409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2175221052794 and 2175221052803.

It is not a weakly prime, because it can be changed into another prime (2175221052871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087610526420 + 1087610526421.

It is an arithmetic number, because the mean of its divisors is an integer number (1087610526421).

Almost surely, 2^{2175221052841} is an apocalyptic number.

It is an amenable number.

2175221052841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2175221052841 is an equidigital number, since it uses as much as digits as its factorization.

2175221052841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89600, while the sum is 40.

The spelling of 2175221052841 in words is "two trillion, one hundred seventy-five billion, two hundred twenty-one million, fifty-two thousand, eight hundred forty-one".