1221233211033 has 8 divisors (see below), whose sum is σ = 1776339216096. Its totient is φ = 740141340000.

The previous prime is 1221233210993. The next prime is 1221233211067. The reversal of 1221233211033 is 3301123321221.

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

It is not a de Polignac number, because 1221233211033 - 2⁶ = 1221233210969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1221233210994 and 1221233211012.

It is not an unprimeable number, because it can be changed into a prime (1221233211083) 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 7 ways as a sum of consecutive naturals, for example, 18503533468 + ... + 18503533533.

It is an arithmetic number, because the mean of its divisors is an integer number (222042402012).

Almost surely, 2^{1221233211033} is an apocalyptic number.

It is an amenable number.

1221233211033 is a deficient number, since it is larger than the sum of its proper divisors (555106005063).

1221233211033 is a wasteful number, since it uses less digits than its factorization.

1221233211033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37007067015.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1221233211033 its reverse (3301123321221), we get a palindrome (4522356532254).

The spelling of 1221233211033 in words is "one trillion, two hundred twenty-one billion, two hundred thirty-three million, two hundred eleven thousand, thirty-three".