221430672734443 has 8 divisors (see below), whose sum is σ = 222488500449600. Its totient is φ = 220373939515968.

The previous prime is 221430672734441. The next prime is 221430672734501. The reversal of 221430672734443 is 344437276034122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221430672734443 - 2¹ = 221430672734441 is a prime.

It is a super-2 number, since 2×221430672734443² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221430672734441) 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, 273218578 + ... + 274027831.

It is an arithmetic number, because the mean of its divisors is an integer number (27811062556200).

Almost surely, 2^{221430672734443} is an apocalyptic number.

221430672734443 is a deficient number, since it is larger than the sum of its proper divisors (1057827715157).

221430672734443 is a wasteful number, since it uses less digits than its factorization.

221430672734443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547248341.

The product of its (nonzero) digits is 16257024, while the sum is 52.

The spelling of 221430672734443 in words is "two hundred twenty-one trillion, four hundred thirty billion, six hundred seventy-two million, seven hundred thirty-four thousand, four hundred forty-three".