3441216521 has 4 divisors (see below), whose sum is σ = 3622333200. Its totient is φ = 3260099844.

The previous prime is 3441216509. The next prime is 3441216539. The reversal of 3441216521 is 1256121443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3441216521 - 2²² = 3437022217 is a prime.

It is a super-2 number, since 2×3441216521² = 23683942288806686882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3441276521) 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, 90558311 + ... + 90558348.

It is an arithmetic number, because the mean of its divisors is an integer number (905583300).

Almost surely, 2^3441216521 is an apocalyptic number.

It is an amenable number.

3441216521 is a deficient number, since it is larger than the sum of its proper divisors (181116679).

3441216521 is a wasteful number, since it uses less digits than its factorization.

3441216521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181116678.

The product of its digits is 5760, while the sum is 29.

The square root of 3441216521 is about 58661.8830331929. The cubic root of 3441216521 is about 1509.7463897278.

Adding to 3441216521 its reverse (1256121443), we get a palindrome (4697337964).

The spelling of 3441216521 in words is "three billion, four hundred forty-one million, two hundred sixteen thousand, five hundred twenty-one".