22251233312 has 192 divisors, whose sum is σ = 56063508480. Its totient is φ = 8441625600.

The previous prime is 22251233239. The next prime is 22251233383. The reversal of 22251233312 is 21333215222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31383614 + ... + 31384322.

It is an arithmetic number, because the mean of its divisors is an integer number (291997440).

Almost surely, 2^22251233312 is an apocalyptic number.

22251233312 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 22251233312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28031754240).

22251233312 is an abundant number, since it is smaller than the sum of its proper divisors (33812275168).

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

22251233312 is a wasteful number, since it uses less digits than its factorization.

22251233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1047 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

Adding to 22251233312 its reverse (21333215222), we get a palindrome (43584448534).

The spelling of 22251233312 in words is "twenty-two billion, two hundred fifty-one million, two hundred thirty-three thousand, three hundred twelve".