12121331021033 has 16 divisors (see below), whose sum is σ = 13411498900800. Its totient is φ = 10882494887616.

The previous prime is 12121331020961. The next prime is 12121331021099. The reversal of 12121331021033 is 33012013312121.

It is a cyclic number.

It is not a de Polignac number, because 12121331021033 - 2¹⁶ = 12121330955497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121331020033) 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, 3352583 + ... + 5956716.

It is an arithmetic number, because the mean of its divisors is an integer number (838218681300).

Almost surely, 2^{12121331021033} is an apocalyptic number.

12121331021033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12121331021033 is a deficient number, since it is larger than the sum of its proper divisors (1290167879767).

12121331021033 is a wasteful number, since it uses less digits than its factorization.

12121331021033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9312056.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12121331021033 its reverse (33012013312121), we get a palindrome (45133344333154).

The spelling of 12121331021033 in words is "twelve trillion, one hundred twenty-one billion, three hundred thirty-one million, twenty-one thousand, thirty-three".