12212026889 has 2 divisors, whose sum is σ = 12212026890. Its totient is φ = 12212026888.

The previous prime is 12212026877. The next prime is 12212026907. The reversal of 12212026889 is 98862021221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12210250000 + 1776889 = 110500^2 + 1333^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212026889 - 2¹⁶ = 12211961353 is a prime.

It is not a weakly prime, because it can be changed into another prime (12212076889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106013444 + 6106013445.

It is an arithmetic number, because the mean of its divisors is an integer number (6106013445).

Almost surely, 2^12212026889 is an apocalyptic number.

It is an amenable number.

12212026889 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212026889 is an equidigital number, since it uses as much as digits as its factorization.

12212026889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 41.

The spelling of 12212026889 in words is "twelve billion, two hundred twelve million, twenty-six thousand, eight hundred eighty-nine".