345221101122543 has 24 divisors (see below), whose sum is σ = 512131904017136. Its totient is φ = 223926281481600.

The previous prime is 345221101122529. The next prime is 345221101122581.

345221101122543 is a `hidden beast` number, since 3 + 4 + 5 + 2 + 2 + 1 + 101 + 1 + 2 + 2 + 543 = 666.

345221101122543 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 345221101122543 - 2¹⁸ = 345221100860399 is a prime.

It is a super-2 number, since 2×345221101122543² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345221101122498 and 345221101122507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345221101122143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84385683 + ... + 88382043.

Almost surely, 2^{345221101122543} is an apocalyptic number.

345221101122543 is a deficient number, since it is larger than the sum of its proper divisors (166910802894593).

345221101122543 is a wasteful number, since it uses less digits than its factorization.

345221101122543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255815 (or 4255812 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

It can be divided in two parts, 34522110 and 1122543, that added together give a palindrome (35644653).

The spelling of 345221101122543 in words is "three hundred forty-five trillion, two hundred twenty-one billion, one hundred one million, one hundred twenty-two thousand, five hundred forty-three".