12021131132033 has 4 divisors (see below), whose sum is σ = 12021158726868. Its totient is φ = 12021103537200.

The previous prime is 12021131132029. The next prime is 12021131132071. The reversal of 12021131132033 is 33023113112021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11684692850944 + 336438281089 = 3418288^2 + 580033^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021131132033 - 2² = 12021131132029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021131132083) 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, 13133318 + ... + 14018783.

It is an arithmetic number, because the mean of its divisors is an integer number (3005289681717).

Almost surely, 2^{12021131132033} is an apocalyptic number.

It is an amenable number.

12021131132033 is a deficient number, since it is larger than the sum of its proper divisors (27594835).

12021131132033 is an equidigital number, since it uses as much as digits as its factorization.

12021131132033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27594834.

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

Adding to 12021131132033 its reverse (33023113112021), we get a palindrome (45044244244054).

The spelling of 12021131132033 in words is "twelve trillion, twenty-one billion, one hundred thirty-one million, one hundred thirty-two thousand, thirty-three".