11112100120121 has 32 divisors (see below), whose sum is σ = 14926746971136. Its totient is φ = 7988967144000.

The previous prime is 11112100120103. The next prime is 11112100120183. The reversal of 11112100120121 is 12102100121111.

It is a cyclic number.

It is not a de Polignac number, because 11112100120121 - 2²² = 11112095925817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11112100120096 and 11112100120105.

It is not an unprimeable number, because it can be changed into a prime (11112100120621) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 471515 + ... + 4737776.

It is an arithmetic number, because the mean of its divisors is an integer number (466460842848).

Almost surely, 2^{11112100120121} is an apocalyptic number.

11112100120121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11112100120121 is a deficient number, since it is larger than the sum of its proper divisors (3814646851015).

11112100120121 is a wasteful number, since it uses less digits than its factorization.

11112100120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211453.

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

Adding to 11112100120121 its reverse (12102100121111), we get a palindrome (23214200241232).

The spelling of 11112100120121 in words is "eleven trillion, one hundred twelve billion, one hundred million, one hundred twenty thousand, one hundred twenty-one".