11215410988 has 6 divisors (see below), whose sum is σ = 19626969236. Its totient is φ = 5607705492.

The previous prime is 11215410979. The next prime is 11215410989. The reversal of 11215410988 is 88901451211.

It is a super-2 number, since 2×11215410988² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11215410988.

It is not an unprimeable number, because it can be changed into a prime (11215410989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401926370 + ... + 1401926377.

Almost surely, 2^11215410988 is an apocalyptic number.

It is an amenable number.

11215410988 is a deficient number, since it is larger than the sum of its proper divisors (8411558248).

11215410988 is a wasteful number, since it uses less digits than its factorization.

11215410988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803852751 (or 2803852749 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 40.

The spelling of 11215410988 in words is "eleven billion, two hundred fifteen million, four hundred ten thousand, nine hundred eighty-eight".