3452512240221 has 64 divisors (see below), whose sum is σ = 5102677472256. Its totient is φ = 2059019827200.

The previous prime is 3452512240189. The next prime is 3452512240271. The reversal of 3452512240221 is 1220422152543.

It is not a de Polignac number, because 3452512240221 - 2⁵ = 3452512240189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3452512240271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 641608951 + ... + 641614331.

It is an arithmetic number, because the mean of its divisors is an integer number (79729335504).

Almost surely, 2^{3452512240221} is an apocalyptic number.

It is an amenable number.

3452512240221 is a deficient number, since it is larger than the sum of its proper divisors (1650165232035).

3452512240221 is a wasteful number, since it uses less digits than its factorization.

3452512240221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6602.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 3452512240221 its reverse (1220422152543), we get a palindrome (4672934392764).

The spelling of 3452512240221 in words is "three trillion, four hundred fifty-two billion, five hundred twelve million, two hundred forty thousand, two hundred twenty-one".