11206521122220 has 120 divisors (see below), whose sum is σ = 35731588063248. Its totient is φ = 2939415350400.

The previous prime is 11206521122179. The next prime is 11206521122299. The reversal of 11206521122220 is 2222112560211.

11206521122220 is a `hidden beast` number, since 1 + 1 + 2 + 0 + 652 + 1 + 1 + 2 + 2 + 2 + 2 + 0 = 666.

It is a super-2 number, since 2×11206521122220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 56602866 + ... + 56800505.

Almost surely, 2^{11206521122220} is an apocalyptic number.

11206521122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11206521122220 is an abundant number, since it is smaller than the sum of its proper divisors (24525066941028).

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

11206521122220 is a wasteful number, since it uses less digits than its factorization.

11206521122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113403453 (or 113403442 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 11206521122220 its reverse (2222112560211), we get a palindrome (13428633682431).

The spelling of 11206521122220 in words is "eleven trillion, two hundred six billion, five hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty".