221041243134 has 12 divisors (see below), whose sum is σ = 478922693496. Its totient is φ = 73680414372.

The previous prime is 221041243123. The next prime is 221041243183. The reversal of 221041243134 is 431342140122.

221041243134 is a `hidden beast` number, since 2 + 210 + 4 + 12 + 431 + 3 + 4 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221041243098 and 221041243107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6140034514 + ... + 6140034549.

It is an arithmetic number, because the mean of its divisors is an integer number (39910224458).

Almost surely, 2^221041243134 is an apocalyptic number.

221041243134 is an abundant number, since it is smaller than the sum of its proper divisors (257881450362).

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

221041243134 is a wasteful number, since it uses less digits than its factorization.

221041243134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12280069071 (or 12280069068 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 221041243134 its reverse (431342140122), we get a palindrome (652383383256).

It can be divided in two parts, 2 and 21041243134, that added together give a square (21041243136 = 145056²).

The spelling of 221041243134 in words is "two hundred twenty-one billion, forty-one million, two hundred forty-three thousand, one hundred thirty-four".