11112200021 has 8 divisors (see below), whose sum is σ = 12019705824. Its totient is φ = 10212225840.

The previous prime is 11112200009. The next prime is 11112200041. The reversal of 11112200021 is 12000221111.

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

It is a cyclic number.

It is not a de Polignac number, because 11112200021 - 2¹⁰ = 11112198997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11112199975 and 11112200011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112200041) 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 in 7 ways as a sum of consecutive naturals, for example, 1879835 + ... + 1885736.

It is an arithmetic number, because the mean of its divisors is an integer number (1502463228).

Almost surely, 2^11112200021 is an apocalyptic number.

It is an amenable number.

11112200021 is a deficient number, since it is larger than the sum of its proper divisors (907505803).

11112200021 is a wasteful number, since it uses less digits than its factorization.

11112200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765811.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11112200021 its reverse (12000221111), we get a palindrome (23112421132).

The spelling of 11112200021 in words is "eleven billion, one hundred twelve million, two hundred thousand, twenty-one".