2171012441 has 4 divisors (see below), whose sum is σ = 2338013412. Its totient is φ = 2004011472.

The previous prime is 2171012399. The next prime is 2171012479. The reversal of 2171012441 is 1442101712.

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 1042321225 + 1128691216 = 32285^2 + 33596^2 .

It is a cyclic number.

It is not a de Polignac number, because 2171012441 - 2¹⁸ = 2170750297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2171012141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83500466 + ... + 83500491.

It is an arithmetic number, because the mean of its divisors is an integer number (584503353).

Almost surely, 2^2171012441 is an apocalyptic number.

It is an amenable number.

2171012441 is a deficient number, since it is larger than the sum of its proper divisors (167000971).

2171012441 is a wasteful number, since it uses less digits than its factorization.

2171012441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167000970.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 2171012441 is about 46594.1245330353. The cubic root of 2171012441 is about 1294.8539045994.

The spelling of 2171012441 in words is "two billion, one hundred seventy-one million, twelve thousand, four hundred forty-one".