345005341314221 has 32 divisors (see below), whose sum is σ = 418522084687872. Its totient is φ = 277633383632640.

The previous prime is 345005341314143. The next prime is 345005341314239. The reversal of 345005341314221 is 122413143500543.

It is not a de Polignac number, because 345005341314221 - 2²² = 345005337119917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345005341314721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77346020 + ... + 81684866.

It is an arithmetic number, because the mean of its divisors is an integer number (13078815146496).

Almost surely, 2^{345005341314221} is an apocalyptic number.

It is an amenable number.

345005341314221 is a deficient number, since it is larger than the sum of its proper divisors (73516743373651).

345005341314221 is a wasteful number, since it uses less digits than its factorization.

345005341314221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340529.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 345005341314221 its reverse (122413143500543), we get a palindrome (467418484814764).

The spelling of 345005341314221 in words is "three hundred forty-five trillion, five billion, three hundred forty-one million, three hundred fourteen thousand, two hundred twenty-one".