1212232001223 has 4 divisors (see below), whose sum is σ = 1616309334968. Its totient is φ = 808154667480.

The previous prime is 1212232001213. The next prime is 1212232001261. The reversal of 1212232001223 is 3221002322121.

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

It is not a de Polignac number, because 1212232001223 - 2⁵ = 1212232001191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212232001223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212232001203) 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, 202038666868 + ... + 202038666873.

It is an arithmetic number, because the mean of its divisors is an integer number (404077333742).

Almost surely, 2^{1212232001223} is an apocalyptic number.

1212232001223 is a deficient number, since it is larger than the sum of its proper divisors (404077333745).

1212232001223 is an equidigital number, since it uses as much as digits as its factorization.

1212232001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404077333744.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1212232001223 its reverse (3221002322121), we get a palindrome (4433234323344).

The spelling of 1212232001223 in words is "one trillion, two hundred twelve billion, two hundred thirty-two million, one thousand, two hundred twenty-three".