12122220001223 has 4 divisors (see below), whose sum is σ = 12125988179760. Its totient is φ = 12118451822688.

The previous prime is 12122220001217. The next prime is 12122220001267. The reversal of 12122220001223 is 32210002222121.

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 12122220001223 - 2⁶ = 12122220001159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12122220001195 and 12122220001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122220001123) 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, 1884084443 + ... + 1884090876.

It is an arithmetic number, because the mean of its divisors is an integer number (3031497044940).

Almost surely, 2^{12122220001223} is an apocalyptic number.

12122220001223 is a deficient number, since it is larger than the sum of its proper divisors (3768178537).

12122220001223 is an equidigital number, since it uses as much as digits as its factorization.

12122220001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768178536.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12122220001223 its reverse (32210002222121), we get a palindrome (44332222223344).

The spelling of 12122220001223 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty million, one thousand, two hundred twenty-three".