221134534331124 has 12 divisors (see below), whose sum is σ = 515980580105984. Its totient is φ = 73711511443704.

The previous prime is 221134534331069. The next prime is 221134534331143. The reversal of 221134534331124 is 421133435431122.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9213938930452 + ... + 9213938930475.

Almost surely, 2^{221134534331124} is an apocalyptic number.

It is an amenable number.

221134534331124 is an abundant number, since it is smaller than the sum of its proper divisors (294846045774860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221134534331124 is a wasteful number, since it uses less digits than its factorization.

221134534331124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18427877860934 (or 18427877860932 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

Adding to 221134534331124 its reverse (421133435431122), we get a palindrome (642267969762246).

The spelling of 221134534331124 in words is "two hundred twenty-one trillion, one hundred thirty-four billion, five hundred thirty-four million, three hundred thirty-one thousand, one hundred twenty-four".