11121222112001 has 16 divisors (see below), whose sum is σ = 11719383244800. Its totient is φ = 10524346232400.

The previous prime is 11121222111991. The next prime is 11121222112027. The reversal of 11121222112001 is 10021122212111.

It is a de Polignac number, because none of the positive numbers 2^k-11121222112001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11121222112031) 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, 325555160 + ... + 325589318.

It is an arithmetic number, because the mean of its divisors is an integer number (732461452800).

Almost surely, 2^{11121222112001} is an apocalyptic number.

It is an amenable number.

11121222112001 is a deficient number, since it is larger than the sum of its proper divisors (598161132799).

11121222112001 is a wasteful number, since it uses less digits than its factorization.

11121222112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52460.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11121222112001 its reverse (10021122212111), we get a palindrome (21142344324112).

The spelling of 11121222112001 in words is "eleven trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twelve thousand, one".