11102220215 has 4 divisors (see below), whose sum is σ = 13322664264. Its totient is φ = 8881776168.

The previous prime is 11102220211. The next prime is 11102220223. The reversal of 11102220215 is 51202220111.

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 11102220215 - 2² = 11102220211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11102220193 and 11102220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110222017 + ... + 1110222026.

It is an arithmetic number, because the mean of its divisors is an integer number (3330666066).

Almost surely, 2^11102220215 is an apocalyptic number.

11102220215 is a deficient number, since it is larger than the sum of its proper divisors (2220444049).

11102220215 is an equidigital number, since it uses as much as digits as its factorization.

11102220215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220444048.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 11102220215 its reverse (51202220111), we get a palindrome (62304440326).

The spelling of 11102220215 in words is "eleven billion, one hundred two million, two hundred twenty thousand, two hundred fifteen".