434231412221 has 4 divisors (see below), whose sum is σ = 434403660444. Its totient is φ = 434059164000.

The previous prime is 434231412211. The next prime is 434231412247. The reversal of 434231412221 is 122214132434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122214132434 = 2 ⋅61107066217.

It can be written as a sum of positive squares in 2 ways, for example, as 53525136025 + 380706276196 = 231355^2 + 617014^2 .

It is a cyclic number.

It is not a de Polignac number, because 434231412221 - 2¹⁴ = 434231395837 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 (434231412211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86120330 + ... + 86125371.

It is an arithmetic number, because the mean of its divisors is an integer number (108600915111).

Almost surely, 2^434231412221 is an apocalyptic number.

It is an amenable number.

434231412221 is a deficient number, since it is larger than the sum of its proper divisors (172248223).

434231412221 is a wasteful number, since it uses less digits than its factorization.

434231412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172248222.

The product of its digits is 9216, while the sum is 29.

Adding to 434231412221 its reverse (122214132434), we get a palindrome (556445544655).

The spelling of 434231412221 in words is "four hundred thirty-four billion, two hundred thirty-one million, four hundred twelve thousand, two hundred twenty-one".