12221121123143 has 2 divisors, whose sum is σ = 12221121123144. Its totient is φ = 12221121123142.

The previous prime is 12221121123083. The next prime is 12221121123179. The reversal of 12221121123143 is 34132112112221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221121123143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221121122143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110560561571 + 6110560561572.

It is an arithmetic number, because the mean of its divisors is an integer number (6110560561572).

Almost surely, 2^{12221121123143} is an apocalyptic number.

12221121123143 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221121123143 is an equidigital number, since it uses as much as digits as its factorization.

12221121123143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 26.

Adding to 12221121123143 its reverse (34132112112221), we get a palindrome (46353233235364).

The spelling of 12221121123143 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-three thousand, one hundred forty-three".