221022004243 has 8 divisors (see below), whose sum is σ = 221539795200. Its totient is φ = 220504327680.

The previous prime is 221022004223. The next prime is 221022004249. The reversal of 221022004243 is 342400220122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221022004243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221022004249) 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, 4775433 + ... + 4821493.

It is an arithmetic number, because the mean of its divisors is an integer number (27692474400).

Almost surely, 2^221022004243 is an apocalyptic number.

221022004243 is a deficient number, since it is larger than the sum of its proper divisors (517790957).

221022004243 is a wasteful number, since it uses less digits than its factorization.

221022004243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57197.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 221022004243 its reverse (342400220122), we get a palindrome (563422224365).

The spelling of 221022004243 in words is "two hundred twenty-one billion, twenty-two million, four thousand, two hundred forty-three".