1200011223233 has 4 divisors (see below), whose sum is σ = 1208770429380. Its totient is φ = 1191252017088.

The previous prime is 1200011223223. The next prime is 1200011223239. The reversal of 1200011223233 is 3323221100021.

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 369266474929 + 830744748304 = 607673^2 + 911452^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200011223233 - 2²⁴ = 1199994446017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200011223239) 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, 4379602868 + ... + 4379603141.

It is an arithmetic number, because the mean of its divisors is an integer number (302192607345).

Almost surely, 2^{1200011223233} is an apocalyptic number.

It is an amenable number.

1200011223233 is a deficient number, since it is larger than the sum of its proper divisors (8759206147).

1200011223233 is an equidigital number, since it uses as much as digits as its factorization.

1200011223233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8759206146.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1200011223233 its reverse (3323221100021), we get a palindrome (4523232323254).

The spelling of 1200011223233 in words is "one trillion, two hundred billion, eleven million, two hundred twenty-three thousand, two hundred thirty-three".