12201220020989 has 2 divisors, whose sum is σ = 12201220020990. Its totient is φ = 12201220020988.

The previous prime is 12201220020967. The next prime is 12201220021031. The reversal of 12201220020989 is 98902002210221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8083120944889 + 4118099076100 = 2843083^2 + 2029310^2 .

It is a cyclic number.

It is not a de Polignac number, because 12201220020989 - 2¹² = 12201220016893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201220020949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100610010494 + 6100610010495.

It is an arithmetic number, because the mean of its divisors is an integer number (6100610010495).

Almost surely, 2^{12201220020989} is an apocalyptic number.

It is an amenable number.

12201220020989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201220020989 is an equidigital number, since it uses as much as digits as its factorization.

12201220020989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 12201220020989 in words is "twelve trillion, two hundred one billion, two hundred twenty million, twenty thousand, nine hundred eighty-nine".