12230011231221 has 16 divisors (see below), whose sum is σ = 18914359944704. Its totient is φ = 6884270713584.

The previous prime is 12230011231201. The next prime is 12230011231241. The reversal of 12230011231221 is 12213211003221.

It is an interprime number because it is at equal distance from previous prime (12230011231201) and next prime (12230011231241).

It is not a de Polignac number, because 12230011231221 - 2⁵ = 12230011231189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230011231201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4346129095 + ... + 4346131908.

It is an arithmetic number, because the mean of its divisors is an integer number (1182147496544).

Almost surely, 2^{12230011231221} is an apocalyptic number.

It is an amenable number.

12230011231221 is a deficient number, since it is larger than the sum of its proper divisors (6684348713483).

12230011231221 is an equidigital number, since it uses as much as digits as its factorization.

12230011231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8692261080.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12230011231221 its reverse (12213211003221), we get a palindrome (24443222234442).

The spelling of 12230011231221 in words is "twelve trillion, two hundred thirty billion, eleven million, two hundred thirty-one thousand, two hundred twenty-one".