12223023121 has 2 divisors, whose sum is σ = 12223023122. Its totient is φ = 12223023120.

The previous prime is 12223023091. The next prime is 12223023151. The reversal of 12223023121 is 12132032221.

It is a balanced prime because it is at equal distance from previous prime (12223023091) and next prime (12223023151).

It can be written as a sum of positive squares in only one way, i.e., 8003091600 + 4219931521 = 89460^2 + 64961^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223023121 - 2¹³ = 12223014929 is a prime.

It is not a weakly prime, because it can be changed into another prime (12223023151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111511560 + 6111511561.

It is an arithmetic number, because the mean of its divisors is an integer number (6111511561).

Almost surely, 2^12223023121 is an apocalyptic number.

It is an amenable number.

12223023121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223023121 is an equidigital number, since it uses as much as digits as its factorization.

12223023121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12223023121 its reverse (12132032221), we get a palindrome (24355055342).

The spelling of 12223023121 in words is "twelve billion, two hundred twenty-three million, twenty-three thousand, one hundred twenty-one".