2175061221241 has 4 divisors (see below), whose sum is σ = 2176583308900. Its totient is φ = 2173539133584.

The previous prime is 2175061221217. The next prime is 2175061221271. The reversal of 2175061221241 is 1421221605712.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1288234080016 + 886827141225 = 1135004^2 + 941715^2 .

It is a cyclic number.

It is not a de Polignac number, because 2175061221241 - 2²³ = 2175052832633 is a prime.

It is a super-2 number, since 2×2175061221241² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2175061221197 and 2175061221206.

It is not an unprimeable number, because it can be changed into a prime (2175061221271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761041686 + ... + 761044543.

It is an arithmetic number, because the mean of its divisors is an integer number (544145827225).

Almost surely, 2^{2175061221241} is an apocalyptic number.

It is an amenable number.

2175061221241 is a deficient number, since it is larger than the sum of its proper divisors (1522087659).

2175061221241 is a wasteful number, since it uses less digits than its factorization.

2175061221241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522087658.

The product of its (nonzero) digits is 13440, while the sum is 34.

Adding to 2175061221241 its reverse (1421221605712), we get a palindrome (3596282826953).

The spelling of 2175061221241 in words is "two trillion, one hundred seventy-five billion, sixty-one million, two hundred twenty-one thousand, two hundred forty-one".