20331222132289 has 2 divisors, whose sum is σ = 20331222132290. Its totient is φ = 20331222132288.

The previous prime is 20331222132211. The next prime is 20331222132293. The reversal of 20331222132289 is 98223122213302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19920975477264 + 410246655025 = 4463292^2 + 640505^2 .

It is a cyclic number.

It is not a de Polignac number, because 20331222132289 - 2¹³ = 20331222124097 is a prime.

It is not a weakly prime, because it can be changed into another prime (20331222132589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165611066144 + 10165611066145.

It is an arithmetic number, because the mean of its divisors is an integer number (10165611066145).

Almost surely, 2^{20331222132289} is an apocalyptic number.

It is an amenable number.

20331222132289 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331222132289 is an equidigital number, since it uses as much as digits as its factorization.

20331222132289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 20331222132289 in words is "twenty trillion, three hundred thirty-one billion, two hundred twenty-two million, one hundred thirty-two thousand, two hundred eighty-nine".