220135012309 has 2 divisors, whose sum is σ = 220135012310. Its totient is φ = 220135012308.

The previous prime is 220135012291. The next prime is 220135012337. The reversal of 220135012309 is 903210531022.

220135012309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (220135012337) can be obtained adding 220135012309 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148459943025 + 71675069284 = 385305^2 + 267722^2 .

It is a cyclic number.

It is not a de Polignac number, because 220135012309 - 2¹¹ = 220135010261 is a prime.

It is a super-2 number, since 2×220135012309² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220135012369) 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, 110067506154 + 110067506155.

It is an arithmetic number, because the mean of its divisors is an integer number (110067506155).

Almost surely, 2^220135012309 is an apocalyptic number.

It is an amenable number.

220135012309 is a deficient number, since it is larger than the sum of its proper divisors (1).

220135012309 is an equidigital number, since it uses as much as digits as its factorization.

220135012309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 220135012309 in words is "two hundred twenty billion, one hundred thirty-five million, twelve thousand, three hundred nine".