11222100121121 has 4 divisors (see below), whose sum is σ = 11223162931200. Its totient is φ = 11221037311044.

The previous prime is 11222100120997. The next prime is 11222100121187. The reversal of 11222100121121 is 12112100122211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11222100121121 - 2²⁶ = 11222033012257 is a prime.

It is a super-2 number, since 2×11222100121121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11222100121121.

It is not an unprimeable number, because it can be changed into a prime (11222109121121) 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, 531389201 + ... + 531410318.

It is an arithmetic number, because the mean of its divisors is an integer number (2805790732800).

Almost surely, 2^{11222100121121} is an apocalyptic number.

It is an amenable number.

11222100121121 is a deficient number, since it is larger than the sum of its proper divisors (1062810079).

11222100121121 is a wasteful number, since it uses less digits than its factorization.

11222100121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062810078.

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

Adding to 11222100121121 its reverse (12112100122211), we get a palindrome (23334200243332).

The spelling of 11222100121121 in words is "eleven trillion, two hundred twenty-two billion, one hundred million, one hundred twenty-one thousand, one hundred twenty-one".