3521225442321 has 40 divisors (see below), whose sum is σ = 5576784197600. Its totient is φ = 2207932214400.

The previous prime is 3521225442281. The next prime is 3521225442337. The reversal of 3521225442321 is 1232445221253.

3521225442321 is a `hidden beast` number, since 3 + 5 + 2 + 1 + 225 + 4 + 423 + 2 + 1 = 666.

It is not a de Polignac number, because 3521225442321 - 2⁷ = 3521225442193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3521225442121) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8016280 + ... + 8444121.

It is an arithmetic number, because the mean of its divisors is an integer number (139419604940).

Almost surely, 2^{3521225442321} is an apocalyptic number.

It is an amenable number.

3521225442321 is a deficient number, since it is larger than the sum of its proper divisors (2055558755279).

3521225442321 is a wasteful number, since it uses less digits than its factorization.

3521225442321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16460571 (or 16460562 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The spelling of 3521225442321 in words is "three trillion, five hundred twenty-one billion, two hundred twenty-five million, four hundred forty-two thousand, three hundred twenty-one".