11112200121 has 16 divisors (see below), whose sum is σ = 16600045248. Its totient is φ = 6552648000.

The previous prime is 11112200081. The next prime is 11112200129. The reversal of 11112200121 is 12100221111.

It is not a de Polignac number, because 11112200121 - 2¹⁰ = 11112199097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11112200097 and 11112200106.

It is not an unprimeable number, because it can be changed into a prime (11112200129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4549230 + ... + 4551671.

It is an arithmetic number, because the mean of its divisors is an integer number (1037502828).

Almost surely, 2^11112200121 is an apocalyptic number.

11112200121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11112200121 is a deficient number, since it is larger than the sum of its proper divisors (5487845127).

11112200121 is a wasteful number, since it uses less digits than its factorization.

11112200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100952.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11112200121 its reverse (12100221111), we get a palindrome (23212421232).

The spelling of 11112200121 in words is "eleven billion, one hundred twelve million, two hundred thousand, one hundred twenty-one".