22220531440 has 40 divisors (see below), whose sum is σ = 51670027728. Its totient is φ = 8886958080.

The previous prime is 22220531429. The next prime is 22220531461. The reversal of 22220531440 is 4413502222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 727680 + ... + 757600.

Almost surely, 2^22220531440 is an apocalyptic number.

22220531440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220531440 is an abundant number, since it is smaller than the sum of its proper divisors (29449496288).

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

22220531440 is a wasteful number, since it uses less digits than its factorization.

22220531440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39217 (or 39211 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The spelling of 22220531440 in words is "twenty-two billion, two hundred twenty million, five hundred thirty-one thousand, four hundred forty".