221233321110320 has 80 divisors (see below), whose sum is σ = 516544077685152. Its totient is φ = 88118918737920.

The previous prime is 221233321110223. The next prime is 221233321110323. The reversal of 221233321110320 is 23011123332122.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×221233321110320² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221233321110320.

It is not an unprimeable number, because it can be changed into a prime (221233321110323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238087739 + ... + 239015141.

Almost surely, 2^{221233321110320} is an apocalyptic number.

221233321110320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221233321110320 is an abundant number, since it is smaller than the sum of its proper divisors (295310756574832).

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

221233321110320 is a wasteful number, since it uses less digits than its factorization.

221233321110320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940030 (or 940024 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 221233321110320 its reverse (23011123332122), we get a palindrome (244244444442442).

The spelling of 221233321110320 in words is "two hundred twenty-one trillion, two hundred thirty-three billion, three hundred twenty-one million, one hundred ten thousand, three hundred twenty".