221241233316 has 24 divisors (see below), whose sum is σ = 517636174720. Its totient is φ = 73546130592.

The previous prime is 221241233299. The next prime is 221241233351. The reversal of 221241233316 is 613332142122.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25113811 + ... + 25122618.

Almost surely, 2^221241233316 is an apocalyptic number.

It is an amenable number.

221241233316 is an abundant number, since it is smaller than the sum of its proper divisors (296394941404).

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

221241233316 is a wasteful number, since it uses less digits than its factorization.

221241233316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50236803 (or 50236801 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

Adding to 221241233316 its reverse (613332142122), we get a palindrome (834573375438).

The spelling of 221241233316 in words is "two hundred twenty-one billion, two hundred forty-one million, two hundred thirty-three thousand, three hundred sixteen".