22185500224 has 14 divisors (see below), whose sum is σ = 44024352134. Its totient is φ = 11092750080.

The previous prime is 22185500213. The next prime is 22185500251. The reversal of 22185500224 is 42200558122.

It can be written as a sum of positive squares in only one way, i.e., 22131917824 + 53582400 = 148768^2 + 7320^2 .

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 as a sum of consecutive naturals, namely, 173324157 + ... + 173324284.

It is an arithmetic number, because the mean of its divisors is an integer number (3144596581).

Almost surely, 2^22185500224 is an apocalyptic number.

It is an amenable number.

22185500224 is a deficient number, since it is larger than the sum of its proper divisors (21838851910).

22185500224 is an equidigital number, since it uses as much as digits as its factorization.

22185500224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346648453 (or 346648443 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The spelling of 22185500224 in words is "twenty-two billion, one hundred eighty-five million, five hundred thousand, two hundred twenty-four".