2215613011 has 4 divisors (see below), whose sum is σ = 2215821024. Its totient is φ = 2215405000.

The previous prime is 2215613003. The next prime is 2215613033. The reversal of 2215613011 is 1103165122.

It is a happy number.

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 2215613011 - 2³ = 2215613003 is a prime.

It is a super-2 number, since 2×2215613011² = 9817882029024972242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2215613711) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 87115 + ... + 109636.

It is an arithmetic number, because the mean of its divisors is an integer number (553955256).

Almost surely, 2^2215613011 is an apocalyptic number.

2215613011 is a deficient number, since it is larger than the sum of its proper divisors (208013).

2215613011 is a wasteful number, since it uses less digits than its factorization.

2215613011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208012.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2215613011 is about 47070.2986075083. The cubic root of 2215613011 is about 1303.6608863491.

Adding to 2215613011 its reverse (1103165122), we get a palindrome (3318778133).

The spelling of 2215613011 in words is "two billion, two hundred fifteen million, six hundred thirteen thousand, eleven".