12121333121011 has 8 divisors (see below), whose sum is σ = 12142008013824. Its totient is φ = 12100673575560.

The previous prime is 12121333120997. The next prime is 12121333121047. The reversal of 12121333121011 is 11012133312121.

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

It is a cyclic number.

It is not a de Polignac number, because 12121333121011 - 2⁵ = 12121333120979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121333121311) 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, 2255341 + ... + 5415646.

It is an arithmetic number, because the mean of its divisors is an integer number (1517751001728).

Almost surely, 2^{12121333121011} is an apocalyptic number.

12121333121011 is a deficient number, since it is larger than the sum of its proper divisors (20674892813).

12121333121011 is an equidigital number, since it uses as much as digits as its factorization.

12121333121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7673681.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 12121333121011 its reverse (11012133312121), we get a palindrome (23133466433132).

The spelling of 12121333121011 in words is "twelve trillion, one hundred twenty-one billion, three hundred thirty-three million, one hundred twenty-one thousand, eleven".