220131012289 has 2 divisors, whose sum is σ = 220131012290. Its totient is φ = 220131012288.

The previous prime is 220131012251. The next prime is 220131012301. The reversal of 220131012289 is 982210131022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176750453889 + 43380558400 = 420417^2 + 208280^2 .

It is a cyclic number.

It is not a de Polignac number, because 220131012289 - 2²¹ = 220128915137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220131012289.

It is not a weakly prime, because it can be changed into another prime (220131012389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110065506144 + 110065506145.

It is an arithmetic number, because the mean of its divisors is an integer number (110065506145).

Almost surely, 2^220131012289 is an apocalyptic number.

It is an amenable number.

220131012289 is a deficient number, since it is larger than the sum of its proper divisors (1).

220131012289 is an equidigital number, since it uses as much as digits as its factorization.

220131012289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 220131012289 in words is "two hundred twenty billion, one hundred thirty-one million, twelve thousand, two hundred eighty-nine".