221113332012232 has 96 divisors (see below), whose sum is σ = 463266705283200. Its totient is φ = 98838668016000.

The previous prime is 221113332012229. The next prime is 221113332012343. The reversal of 221113332012232 is 232210233311122.

It is a super-2 number, since 2×221113332012232² (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 221113332012232.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297171307 + ... + 297914437.

It is an arithmetic number, because the mean of its divisors is an integer number (4825694846700).

Almost surely, 2^{221113332012232} is an apocalyptic number.

221113332012232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221113332012232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231633352641600).

221113332012232 is an abundant number, since it is smaller than the sum of its proper divisors (242153373270968).

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

221113332012232 is a wasteful number, since it uses less digits than its factorization.

221113332012232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748259 (or 748244 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 221113332012232 its reverse (232210233311122), we get a palindrome (453323565323354).

The spelling of 221113332012232 in words is "two hundred twenty-one trillion, one hundred thirteen billion, three hundred thirty-two million, twelve thousand, two hundred thirty-two".