22221311201232 has 240 divisors, whose sum is σ = 67840703202816. Its totient is φ = 6213070656000.

The previous prime is 22221311201203. The next prime is 22221311201249. The reversal of 22221311201232 is 23210211312222.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211516557 + ... + 211621587.

Almost surely, 2^{22221311201232} is an apocalyptic number.

22221311201232 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 22221311201232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33920351601408).

22221311201232 is an abundant number, since it is smaller than the sum of its proper divisors (45619392001584).

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

22221311201232 is a wasteful number, since it uses less digits than its factorization.

22221311201232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107450 (or 107431 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 22221311201232 its reverse (23210211312222), we get a palindrome (45431522513454).

The spelling of 22221311201232 in words is "twenty-two trillion, two hundred twenty-one billion, three hundred eleven million, two hundred one thousand, two hundred thirty-two".