11112211000121 has 12 divisors (see below), whose sum is σ = 14101581306960. Its totient is φ = 8658865713960.

The previous prime is 11112211000117. The next prime is 11112211000151. The reversal of 11112211000121 is 12100011221111.

11112211000121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11112211000121 - 2² = 11112211000117 is a prime.

It is a super-2 number, since 2×11112211000121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11112211000096 and 11112211000105.

It is not an unprimeable number, because it can be changed into a prime (11112211000151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10308172931 + ... + 10308174008.

It is an arithmetic number, because the mean of its divisors is an integer number (1175131775580).

Almost surely, 2^{11112211000121} is an apocalyptic number.

11112211000121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11112211000121 is a deficient number, since it is larger than the sum of its proper divisors (2989370306839).

11112211000121 is a wasteful number, since it uses less digits than its factorization.

11112211000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20616346964 (or 20616346957 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11112211000121 its reverse (12100011221111), we get a palindrome (23212222221232).

The spelling of 11112211000121 in words is "eleven trillion, one hundred twelve billion, two hundred eleven million, one hundred twenty-one", and thus it is an aban number.