221124222243 has 8 divisors (see below), whose sum is σ = 327591440400. Its totient is φ = 147416148144.

The previous prime is 221124222203. The next prime is 221124222379. The reversal of 221124222243 is 342222421122.

221124222243 is a `hidden beast` number, since 2 + 2 + 1 + 12 + 422 + 224 + 3 = 666.

It is not a de Polignac number, because 221124222243 - 2¹⁷ = 221124091171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8189786009 = 221124222243 / (2 + 2 + 1 + 1 + 2 + 4 + 2 + 2 + 2 + 2 + 4 + 3).

It is not an unprimeable number, because it can be changed into a prime (221124222203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4094892978 + ... + 4094893031.

It is an arithmetic number, because the mean of its divisors is an integer number (40948930050).

Almost surely, 2^221124222243 is an apocalyptic number.

221124222243 is a deficient number, since it is larger than the sum of its proper divisors (106467218157).

221124222243 is an equidigital number, since it uses as much as digits as its factorization.

221124222243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189786018 (or 8189786012 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

Adding to 221124222243 its reverse (342222421122), we get a palindrome (563346643365).

The spelling of 221124222243 in words is "two hundred twenty-one billion, one hundred twenty-four million, two hundred twenty-two thousand, two hundred forty-three".