11210233212121 has 4 divisors (see below), whose sum is σ = 11219677386192. Its totient is φ = 11200789038052.

The previous prime is 11210233212043. The next prime is 11210233212239. The reversal of 11210233212121 is 12121233201211.

It is a happy number.

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 11210233212121 - 2⁷ = 11210233211993 is a prime.

It is a super-3 number, since 3×11210233212121³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11210233212092 and 11210233212101.

It is not an unprimeable number, because it can be changed into a prime (11210233212421) 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, 4722085255 + ... + 4722087628.

It is an arithmetic number, because the mean of its divisors is an integer number (2804919346548).

Almost surely, 2^{11210233212121} is an apocalyptic number.

It is an amenable number.

11210233212121 is a deficient number, since it is larger than the sum of its proper divisors (9444174071).

11210233212121 is an equidigital number, since it uses as much as digits as its factorization.

11210233212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9444174070.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 11210233212121 its reverse (12121233201211), we get a palindrome (23331466413332).

The spelling of 11210233212121 in words is "eleven trillion, two hundred ten billion, two hundred thirty-three million, two hundred twelve thousand, one hundred twenty-one".