2215556224 has 32 divisors (see below), whose sum is σ = 5044348800. Its totient is φ = 949523712.

The previous prime is 2215556221. The next prime is 2215556249. The reversal of 2215556224 is 4226555122.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 2215556224.

It is not an unprimeable number, because it can be changed into a prime (2215556221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1235464 + ... + 1237255.

It is an arithmetic number, because the mean of its divisors is an integer number (157635900).

Almost surely, 2^2215556224 is an apocalyptic number.

It is an amenable number.

2215556224 is an abundant number, since it is smaller than the sum of its proper divisors (2828792576).

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

2215556224 is an equidigital number, since it uses as much as digits as its factorization.

2215556224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472740 (or 2472728 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 2215556224 is about 47069.6953888593. The cubic root of 2215556224 is about 1303.6497484800.

The spelling of 2215556224 in words is "two billion, two hundred fifteen million, five hundred fifty-six thousand, two hundred twenty-four".