2215204112 has 60 divisors (see below), whose sum is σ = 4806840780. Its totient is φ = 987866880.

The previous prime is 2215204087. The next prime is 2215204133. The reversal of 2215204112 is 2114025122.

It can be written as a sum of positive squares in 2 ways, for example, as 1330498576 + 884705536 = 36476^2 + 29744^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91814 + ... + 113402.

It is an arithmetic number, because the mean of its divisors is an integer number (80114013).

Almost surely, 2^2215204112 is an apocalyptic number.

2215204112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215204112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2403420390).

2215204112 is an abundant number, since it is smaller than the sum of its proper divisors (2591636668).

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

2215204112 is a wasteful number, since it uses less digits than its factorization.

2215204112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21672 (or 21655 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2215204112 is about 47065.9549143540. The cubic root of 2215204112 is about 1303.5806830485.

Adding to 2215204112 its reverse (2114025122), we get a palindrome (4329229234).

The spelling of 2215204112 in words is "two billion, two hundred fifteen million, two hundred four thousand, one hundred twelve".