2185504222 has 64 divisors (see below), whose sum is σ = 3876652800. Its totient is φ = 913524480.

The previous prime is 2185504193. The next prime is 2185504249. The reversal of 2185504222 is 2224055812.

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 31 ways as a sum of consecutive naturals, for example, 2043904 + ... + 2044972.

It is an arithmetic number, because the mean of its divisors is an integer number (60572700).

Almost surely, 2^2185504222 is an apocalyptic number.

2185504222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2185504222 is a deficient number, since it is larger than the sum of its proper divisors (1691148578).

2185504222 is a wasteful number, since it uses less digits than its factorization.

2185504222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241.

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

The square root of 2185504222 is about 46749.3767017273. The cubic root of 2185504222 is about 1297.7286218935.

The spelling of 2185504222 in words is "two billion, one hundred eighty-five million, five hundred four thousand, two hundred twenty-two".