12020201223 has 4 divisors (see below), whose sum is σ = 16026934968. Its totient is φ = 8013467480.

The previous prime is 12020201201. The next prime is 12020201233. The reversal of 12020201223 is 32210202021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12020201223 - 2⁹ = 12020200711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020201233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2003366868 + ... + 2003366873.

It is an arithmetic number, because the mean of its divisors is an integer number (4006733742).

Almost surely, 2^12020201223 is an apocalyptic number.

12020201223 is a deficient number, since it is larger than the sum of its proper divisors (4006733745).

12020201223 is an equidigital number, since it uses as much as digits as its factorization.

12020201223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006733744.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12020201223 its reverse (32210202021), we get a palindrome (44230403244).

The spelling of 12020201223 in words is "twelve billion, twenty million, two hundred one thousand, two hundred twenty-three".