11211121000121 has 8 divisors (see below), whose sum is σ = 12939568227264. Its totient is φ = 9514388401200.

The previous prime is 11211121000111. The next prime is 11211121000129. The reversal of 11211121000121 is 12100012111211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11211121000121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11211121000096 and 11211121000105.

It is not an unprimeable number, because it can be changed into a prime (11211121000129) 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 7 ways as a sum of consecutive naturals, for example, 7928656295 + ... + 7928657708.

It is an arithmetic number, because the mean of its divisors is an integer number (1617446028408).

Almost surely, 2^{11211121000121} is an apocalyptic number.

It is an amenable number.

11211121000121 is a deficient number, since it is larger than the sum of its proper divisors (1728447227143).

11211121000121 is a wasteful number, since it uses less digits than its factorization.

11211121000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15857314111.

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

Adding to 11211121000121 its reverse (12100012111211), we get a palindrome (23311133111332).

It can be divided in two parts, 11211 and 121000121, that multiplied together give a palindrome (1356532356531).

The spelling of 11211121000121 in words is "eleven trillion, two hundred eleven billion, one hundred twenty-one million, one hundred twenty-one", and thus it is an aban number.