22331221223232 has 56 divisors (see below), whose sum is σ = 59200769685600. Its totient is φ = 7429116130816.

The previous prime is 22331221223221. The next prime is 22331221223243. The reversal of 22331221223232 is 23232212213322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22331221223221) and next prime (22331221223243).

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

It is a self number, because there is not a number n which added to its sum of digits gives 22331221223232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114154182 + ... + 114349637.

Almost surely, 2^{22331221223232} is an apocalyptic number.

It is an amenable number.

22331221223232 is an abundant number, since it is smaller than the sum of its proper divisors (36869548462368).

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

22331221223232 is a wasteful number, since it uses less digits than its factorization.

22331221223232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228504343 (or 228504333 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

Adding to 22331221223232 its reverse (23232212213322), we get a palindrome (45563433436554).

The spelling of 22331221223232 in words is "twenty-two trillion, three hundred thirty-one billion, two hundred twenty-one million, two hundred twenty-three thousand, two hundred thirty-two".