2215556223 has 4 divisors (see below), whose sum is σ = 2954074968. Its totient is φ = 1477037480.

The previous prime is 2215556221. The next prime is 2215556249. The reversal of 2215556223 is 3226555122.

2215556223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2215556223 - 2¹ = 2215556221 is a prime.

It is a congruent number.

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, 369259368 + ... + 369259373.

It is an arithmetic number, because the mean of its divisors is an integer number (738518742).

Almost surely, 2^2215556223 is an apocalyptic number.

2215556223 is a deficient number, since it is larger than the sum of its proper divisors (738518745).

2215556223 is an equidigital number, since it uses as much as digits as its factorization.

2215556223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738518744.

The product of its digits is 36000, while the sum is 33.

The square root of 2215556223 is about 47069.6953782367. The cubic root of 2215556223 is about 1303.6497482838.

The spelling of 2215556223 in words is "two billion, two hundred fifteen million, five hundred fifty-six thousand, two hundred twenty-three".