1223001100033 has 4 divisors (see below), whose sum is σ = 1276175060928. Its totient is φ = 1169827139140.

The previous prime is 1223001099989. The next prime is 1223001100037. The reversal of 1223001100033 is 3300011003221.

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 not a de Polignac number, because 1223001100033 - 2³³ = 1214411165441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223001100037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26586980413 + ... + 26586980458.

It is an arithmetic number, because the mean of its divisors is an integer number (319043765232).

Almost surely, 2^{1223001100033} is an apocalyptic number.

It is an amenable number.

1223001100033 is a deficient number, since it is larger than the sum of its proper divisors (53173960895).

1223001100033 is an equidigital number, since it uses as much as digits as its factorization.

1223001100033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53173960894.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1223001100033 its reverse (3300011003221), we get a palindrome (4523012103254).

The spelling of 1223001100033 in words is "one trillion, two hundred twenty-three billion, one million, one hundred thousand, thirty-three".