22120989440 has 72 divisors (see below), whose sum is σ = 57803690448. Its totient is φ = 8043991040.

The previous prime is 22120989439. The next prime is 22120989491. The reversal of 22120989440 is 4498902122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771467 + ... + 799626.

It is an arithmetic number, because the mean of its divisors is an integer number (802829034).

Almost surely, 2^22120989440 is an apocalyptic number.

22120989440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120989440 is an abundant number, since it is smaller than the sum of its proper divisors (35682701008).

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

22120989440 is a wasteful number, since it uses less digits than its factorization.

22120989440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571125 (or 1571111 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 22120989440 in words is "twenty-two billion, one hundred twenty million, nine hundred eighty-nine thousand, four hundred forty".