11221532111052 has 18 divisors (see below), whose sum is σ = 28365539503028. Its totient is φ = 3740510703672.

The previous prime is 11221532110991. The next prime is 11221532111059. The reversal of 11221532111052 is 25011123512211.

11221532111052 is a `hidden beast` number, since 1 + 1 + 2 + 21 + 532 + 1 + 1 + 105 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (11221532111059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155854612618 + ... + 155854612689.

Almost surely, 2^{11221532111052} is an apocalyptic number.

11221532111052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11221532111052 is an abundant number, since it is smaller than the sum of its proper divisors (17144007391976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11221532111052 is a wasteful number, since it uses less digits than its factorization.

11221532111052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311709225317 (or 311709225312 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

Adding to 11221532111052 its reverse (25011123512211), we get a palindrome (36232655623263).

The spelling of 11221532111052 in words is "eleven trillion, two hundred twenty-one billion, five hundred thirty-two million, one hundred eleven thousand, fifty-two".