11000112121 has 4 divisors (see below), whose sum is σ = 11001856500. Its totient is φ = 10998367744.

The previous prime is 11000112107. The next prime is 11000112131. The reversal of 11000112121 is 12121100011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3207636496 + 7792475625 = 56636^2 + 88275^2 .

It is a cyclic number.

It is not a de Polignac number, because 11000112121 - 2⁹ = 11000111609 is a prime.

It is a super-2 number, since 2×11000112121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11000112098 and 11000112107.

It is not an unprimeable number, because it can be changed into a prime (11000112131) 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 3 ways as a sum of consecutive naturals, for example, 862696 + ... + 875353.

It is an arithmetic number, because the mean of its divisors is an integer number (2750464125).

Almost surely, 2^11000112121 is an apocalyptic number.

It is an amenable number.

11000112121 is a deficient number, since it is larger than the sum of its proper divisors (1744379).

11000112121 is an equidigital number, since it uses as much as digits as its factorization.

11000112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744378.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11000112121 its reverse (12121100011), we get a palindrome (23121212132).

The spelling of 11000112121 in words is "eleven billion, one hundred twelve thousand, one hundred twenty-one".