5434521042221 has 4 divisors (see below), whose sum is σ = 5437125031392. Its totient is φ = 5431917053052.

The previous prime is 5434521042173. The next prime is 5434521042257. The reversal of 5434521042221 is 1222401254345.

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.

It is a cyclic number.

It is not a de Polignac number, because 5434521042221 - 2²⁶ = 5434453933357 is a prime.

It is a super-2 number, since 2×5434521042221² (a number of 26 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 (5434521044221) 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, 1301991455 + ... + 1301995628.

It is an arithmetic number, because the mean of its divisors is an integer number (1359281257848).

Almost surely, 2^{5434521042221} is an apocalyptic number.

It is an amenable number.

5434521042221 is a deficient number, since it is larger than the sum of its proper divisors (2603989171).

5434521042221 is a wasteful number, since it uses less digits than its factorization.

5434521042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603989170.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 5434521042221 its reverse (1222401254345), we get a palindrome (6656922296566).

The spelling of 5434521042221 in words is "five trillion, four hundred thirty-four billion, five hundred twenty-one million, forty-two thousand, two hundred twenty-one".