220101102281 has 2 divisors, whose sum is σ = 220101102282. Its totient is φ = 220101102280.

The previous prime is 220101102253. The next prime is 220101102371. The reversal of 220101102281 is 182201101022.

220101102281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190496458681 + 29604643600 = 436459^2 + 172060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220101102281 is a prime.

It is a super-2 number, since 2×220101102281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220101102211) 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, 110050551140 + 110050551141.

It is an arithmetic number, because the mean of its divisors is an integer number (110050551141).

Almost surely, 2^220101102281 is an apocalyptic number.

It is an amenable number.

220101102281 is a deficient number, since it is larger than the sum of its proper divisors (1).

220101102281 is an equidigital number, since it uses as much as digits as its factorization.

220101102281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

The spelling of 220101102281 in words is "two hundred twenty billion, one hundred one million, one hundred two thousand, two hundred eighty-one".