11121202100121 has 8 divisors (see below), whose sum is σ = 15229033506624. Its totient is φ = 7213752713520.

The previous prime is 11121202100083. The next prime is 11121202100153. The reversal of 11121202100121 is 12100120212111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11121202100121 - 2¹⁷ = 11121201969049 is a prime.

It is a super-3 number, since 3×11121202100121³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 11121202100121.

It is not an unprimeable number, because it can be changed into a prime (11121202100221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50095504845 + ... + 50095505066.

It is an arithmetic number, because the mean of its divisors is an integer number (1903629188328).

Almost surely, 2^{11121202100121} is an apocalyptic number.

It is an amenable number.

11121202100121 is a deficient number, since it is larger than the sum of its proper divisors (4107831406503).

11121202100121 is a wasteful number, since it uses less digits than its factorization.

11121202100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100191009951.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11121202100121 its reverse (12100120212111), we get a palindrome (23221322312232).

The spelling of 11121202100121 in words is "eleven trillion, one hundred twenty-one billion, two hundred two million, one hundred thousand, one hundred twenty-one".