11122217815 has 16 divisors (see below), whose sum is σ = 14053972320. Its totient is φ = 8426557440.

The previous prime is 11122217773. The next prime is 11122217833. The reversal of 11122217815 is 51871222111.

It is a de Polignac number, because none of the positive numbers 2^k-11122217815 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279355 + ... + 316675.

It is an arithmetic number, because the mean of its divisors is an integer number (878373270).

Almost surely, 2^11122217815 is an apocalyptic number.

11122217815 is a deficient number, since it is larger than the sum of its proper divisors (2931754505).

11122217815 is a wasteful number, since it uses less digits than its factorization.

11122217815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40482.

The product of its digits is 2240, while the sum is 31.

Adding to 11122217815 its reverse (51871222111), we get a palindrome (62993439926).

The spelling of 11122217815 in words is "eleven billion, one hundred twenty-two million, two hundred seventeen thousand, eight hundred fifteen".