11232012121 has 16 divisors (see below), whose sum is σ = 12507473088. Its totient is φ = 9999662400.

The previous prime is 11232012097. The next prime is 11232012137. The reversal of 11232012121 is 12121023211.

It is a cyclic number.

It is not a de Polignac number, because 11232012121 - 2¹¹ = 11232010073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11232012095 and 11232012104.

It is not an unprimeable number, because it can be changed into a prime (11232012221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301291 + ... + 336511.

It is an arithmetic number, because the mean of its divisors is an integer number (781717068).

Almost surely, 2^11232012121 is an apocalyptic number.

11232012121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11232012121 is a deficient number, since it is larger than the sum of its proper divisors (1275460967).

11232012121 is a wasteful number, since it uses less digits than its factorization.

11232012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35832.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11232012121 its reverse (12121023211), we get a palindrome (23353035332).

The spelling of 11232012121 in words is "eleven billion, two hundred thirty-two million, twelve thousand, one hundred twenty-one".