22111232120 has 64 divisors (see below), whose sum is σ = 51534468000. Its totient is φ = 8528117248.

The previous prime is 22111232113. The next prime is 22111232123. The reversal of 22111232120 is 2123211122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111232123) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 884351 + ... + 909009.

Almost surely, 2^22111232120 is an apocalyptic number.

22111232120 is a gapful number since it is divisible by the number (20) 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 22111232120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25767234000).

22111232120 is an abundant number, since it is smaller than the sum of its proper divisors (29423235880).

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

22111232120 is a wasteful number, since it uses less digits than its factorization.

22111232120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25472 (or 25468 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22111232120 its reverse (2123211122), we get a palindrome (24234443242).

The spelling of 22111232120 in words is "twenty-two billion, one hundred eleven million, two hundred thirty-two thousand, one hundred twenty".