22240042820 has 24 divisors (see below), whose sum is σ = 46834200000. Its totient is φ = 8871234272.

The previous prime is 22240042817. The next prime is 22240042871. The reversal of 22240042820 is 2824004222.

It is a self number, because there is not a number n which added to its sum of digits gives 22240042820.

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, 1541570 + ... + 1555929.

It is an arithmetic number, because the mean of its divisors is an integer number (1951425000).

Almost surely, 2^22240042820 is an apocalyptic number.

22240042820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22240042820 is an abundant number, since it is smaller than the sum of its proper divisors (24594157180).

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

22240042820 is a wasteful number, since it uses less digits than its factorization.

22240042820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097867 (or 3097865 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The spelling of 22240042820 in words is "twenty-two billion, two hundred forty million, forty-two thousand, eight hundred twenty".