11557212110 has 16 divisors (see below), whose sum is σ = 21245599296. Its totient is φ = 4524525408.

The previous prime is 11557212103. The next prime is 11557212127. The reversal of 11557212110 is 1121275511.

It is a self number, because there is not a number n which added to its sum of digits gives 11557212110.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 12294437 + ... + 12295376.

It is an arithmetic number, because the mean of its divisors is an integer number (1327849956).

Almost surely, 2^11557212110 is an apocalyptic number.

11557212110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11557212110 is a deficient number, since it is larger than the sum of its proper divisors (9688387186).

11557212110 is a wasteful number, since it uses less digits than its factorization.

11557212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24589867.

The product of its (nonzero) digits is 700, while the sum is 26.

Adding to 11557212110 its reverse (1121275511), we get a palindrome (12678487621).

The spelling of 11557212110 in words is "eleven billion, five hundred fifty-seven million, two hundred twelve thousand, one hundred ten".