34531112221 has 4 divisors (see below), whose sum is σ = 36348539200. Its totient is φ = 32713685244.

The previous prime is 34531112197. The next prime is 34531112233. The reversal of 34531112221 is 12221113543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12221113543 = 487 ⋅25094689.

It is a cyclic number.

It is not a de Polignac number, because 34531112221 - 2¹³ = 34531104029 is a prime.

It is a super-2 number, since 2×34531112221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34531112281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908713461 + ... + 908713498.

It is an arithmetic number, because the mean of its divisors is an integer number (9087134800).

Almost surely, 2^34531112221 is an apocalyptic number.

It is an amenable number.

34531112221 is a deficient number, since it is larger than the sum of its proper divisors (1817426979).

34531112221 is a wasteful number, since it uses less digits than its factorization.

34531112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817426978.

The product of its digits is 1440, while the sum is 25.

Adding to 34531112221 its reverse (12221113543), we get a palindrome (46752225764).

The spelling of 34531112221 in words is "thirty-four billion, five hundred thirty-one million, one hundred twelve thousand, two hundred twenty-one".