221362263243 has 24 divisors (see below), whose sum is σ = 349560259776. Its totient is φ = 133871641200.

The previous prime is 221362263179. The next prime is 221362263257. The reversal of 221362263243 is 342362263122.

221362263243 is a `hidden beast` number, since 2 + 2 + 1 + 3 + 622 + 6 + 3 + 24 + 3 = 666.

It is not a de Polignac number, because 221362263243 - 2⁶ = 221362263179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221362263198 and 221362263207.

It is not an unprimeable number, because it can be changed into a prime (221362263943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2347753 + ... + 2440218.

It is an arithmetic number, because the mean of its divisors is an integer number (14565010824).

Almost surely, 2^221362263243 is an apocalyptic number.

221362263243 is a deficient number, since it is larger than the sum of its proper divisors (128197996533).

221362263243 is a wasteful number, since it uses less digits than its factorization.

221362263243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4788455 (or 4788452 counting only the distinct ones).

The product of its digits is 124416, while the sum is 36.

The spelling of 221362263243 in words is "two hundred twenty-one billion, three hundred sixty-two million, two hundred sixty-three thousand, two hundred forty-three".