11156538521122 has 8 divisors (see below), whose sum is σ = 16734997155996. Its totient is φ = 5578206135792.

The previous prime is 11156538521111. The next prime is 11156538521147. The reversal of 11156538521122 is 22112583565111.

It can be written as a sum of positive squares in 2 ways, for example, as 11097499726681 + 59038794441 = 3331291^2 + 242979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31341153 + ... + 31695124.

Almost surely, 2^{11156538521122} is an apocalyptic number.

11156538521122 is a deficient number, since it is larger than the sum of its proper divisors (5578458634874).

11156538521122 is an equidigital number, since it uses as much as digits as its factorization.

11156538521122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63124772.

The product of its digits is 144000, while the sum is 43.

The spelling of 11156538521122 in words is "eleven trillion, one hundred fifty-six billion, five hundred thirty-eight million, five hundred twenty-one thousand, one hundred twenty-two".