24220120081 has 2 divisors, whose sum is σ = 24220120082. Its totient is φ = 24220120080.

The previous prime is 24220120079. The next prime is 24220120129. The reversal of 24220120081 is 18002102242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23008035856 + 1212084225 = 151684^2 + 34815^2 .

It is a cyclic number.

It is not a de Polignac number, because 24220120081 - 2¹ = 24220120079 is a prime.

It is a super-2 number, since 2×24220120081² (a number of 22 digits) contains 22 as substring.

Together with 24220120079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (24220120381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12110060040 + 12110060041.

It is an arithmetic number, because the mean of its divisors is an integer number (12110060041).

Almost surely, 2^24220120081 is an apocalyptic number.

It is an amenable number.

24220120081 is a deficient number, since it is larger than the sum of its proper divisors (1).

24220120081 is an equidigital number, since it uses as much as digits as its factorization.

24220120081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 22.

The spelling of 24220120081 in words is "twenty-four billion, two hundred twenty million, one hundred twenty thousand, eighty-one".