12223231012021 has 2 divisors, whose sum is σ = 12223231012022. Its totient is φ = 12223231012020.

The previous prime is 12223231011989. The next prime is 12223231012127. The reversal of 12223231012021 is 12021013232221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9213835284900 + 3009395727121 = 3035430^2 + 1734761^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223231012021 - 2⁵ = 12223231011989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12223231011983 and 12223231012001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12223231012621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111615506010 + 6111615506011.

It is an arithmetic number, because the mean of its divisors is an integer number (6111615506011).

Almost surely, 2^{12223231012021} is an apocalyptic number.

It is an amenable number.

12223231012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223231012021 is an equidigital number, since it uses as much as digits as its factorization.

12223231012021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12223231012021 its reverse (12021013232221), we get a palindrome (24244244244242).

The spelling of 12223231012021 in words is "twelve trillion, two hundred twenty-three billion, two hundred thirty-one million, twelve thousand, twenty-one".