3504231352221 has 16 divisors (see below), whose sum is σ = 4951948618368. Its totient is φ = 2196600742400.

The previous prime is 3504231352183. The next prime is 3504231352291. The reversal of 3504231352221 is 1222531324053.

It is a cyclic number.

It is not a de Polignac number, because 3504231352221 - 2⁶ = 3504231352157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3504231352291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33269640 + ... + 33374801.

It is an arithmetic number, because the mean of its divisors is an integer number (309496788648).

Almost surely, 2^{3504231352221} is an apocalyptic number.

It is an amenable number.

3504231352221 is a deficient number, since it is larger than the sum of its proper divisors (1447717266147).

3504231352221 is a wasteful number, since it uses less digits than its factorization.

3504231352221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66645492.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 3504231352221 its reverse (1222531324053), we get a palindrome (4726762676274).

The spelling of 3504231352221 in words is "three trillion, five hundred four billion, two hundred thirty-one million, three hundred fifty-two thousand, two hundred twenty-one".