534505211221 has 16 divisors (see below), whose sum is σ = 568436702400. Its totient is φ = 500854337280.

The previous prime is 534505211213. The next prime is 534505211239. The reversal of 534505211221 is 122112505435.

It is not a de Polignac number, because 534505211221 - 2³ = 534505211213 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 (534505215221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4309330 + ... + 4431628.

It is an arithmetic number, because the mean of its divisors is an integer number (35527293900).

Almost surely, 2^534505211221 is an apocalyptic number.

It is an amenable number.

534505211221 is a deficient number, since it is larger than the sum of its proper divisors (33931491179).

534505211221 is a wasteful number, since it uses less digits than its factorization.

534505211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123444.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 534505211221 its reverse (122112505435), we get a palindrome (656617716656).

The spelling of 534505211221 in words is "five hundred thirty-four billion, five hundred five million, two hundred eleven thousand, two hundred twenty-one".