12011221010033 has 4 divisors (see below), whose sum is σ = 13727109725760. Its totient is φ = 10295332294308.

The previous prime is 12011221010011. The next prime is 12011221010039. The reversal of 12011221010033 is 33001012211021.

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 a de Polignac number, because none of the positive numbers 2^k-12011221010033 is a prime.

It is a super-2 number, since 2×12011221010033² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011221009993 and 12011221010020.

It is not an unprimeable number, because it can be changed into a prime (12011221010039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857944357853 + ... + 857944357866.

It is an arithmetic number, because the mean of its divisors is an integer number (3431777431440).

Almost surely, 2^{12011221010033} is an apocalyptic number.

It is an amenable number.

12011221010033 is a deficient number, since it is larger than the sum of its proper divisors (1715888715727).

12011221010033 is an equidigital number, since it uses as much as digits as its factorization.

12011221010033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715888715726.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12011221010033 its reverse (33001012211021), we get a palindrome (45012233221054).

The spelling of 12011221010033 in words is "twelve trillion, eleven billion, two hundred twenty-one million, ten thousand, thirty-three".