12223873920 has 128 divisors (see below), whose sum is σ = 39000385440. Its totient is φ = 3256623104.

The previous prime is 12223873889. The next prime is 12223873957. The reversal of 12223873920 is 2937832221.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×12223873920² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2633842 + ... + 2638478.

Almost surely, 2^12223873920 is an apocalyptic number.

12223873920 is a gapful number since it is divisible by the number (10) 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 12223873920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19500192720).

12223873920 is an abundant number, since it is smaller than the sum of its proper divisors (26776511520).

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

12223873920 is a wasteful number, since it uses less digits than its factorization.

12223873920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6032 (or 6020 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 12223873920 in words is "twelve billion, two hundred twenty-three million, eight hundred seventy-three thousand, nine hundred twenty".