11212110001121 has 4 divisors (see below), whose sum is σ = 11699593044672. Its totient is φ = 10724626957572.

The previous prime is 11212110001111. The next prime is 11212110001177. The reversal of 11212110001121 is 12110001121211.

11212110001121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11212110001121 - 2¹⁰ = 11212110000097 is a prime.

It is a super-2 number, since 2×11212110001121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212110001096 and 11212110001105.

It is not an unprimeable number, because it can be changed into a prime (11212110001111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243741521741 + ... + 243741521786.

It is an arithmetic number, because the mean of its divisors is an integer number (2924898261168).

Almost surely, 2^{11212110001121} is an apocalyptic number.

It is an amenable number.

11212110001121 is a deficient number, since it is larger than the sum of its proper divisors (487483043551).

11212110001121 is an equidigital number, since it uses as much as digits as its factorization.

11212110001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487483043550.

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

Adding to 11212110001121 its reverse (12110001121211), we get a palindrome (23322111122332).

The spelling of 11212110001121 in words is "eleven trillion, two hundred twelve billion, one hundred ten million, one thousand, one hundred twenty-one".