12222212121047 has 2 divisors, whose sum is σ = 12222212121048. Its totient is φ = 12222212121046.

The previous prime is 12222212120917. The next prime is 12222212121071. The reversal of 12222212121047 is 74012121222221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12222212121047 - 2⁸ = 12222212120791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222212120047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111106060523 + 6111106060524.

It is an arithmetic number, because the mean of its divisors is an integer number (6111106060524).

Almost surely, 2^{12222212121047} is an apocalyptic number.

12222212121047 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222212121047 is an equidigital number, since it uses as much as digits as its factorization.

12222212121047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 29.

Adding to 12222212121047 its reverse (74012121222221), we get a palindrome (86234333343268).

The spelling of 12222212121047 in words is "twelve trillion, two hundred twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, forty-seven".