254220101117 has 2 divisors, whose sum is σ = 254220101118. Its totient is φ = 254220101116.

The previous prime is 254220101059. The next prime is 254220101119. The reversal of 254220101117 is 711101022452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213734234596 + 40485866521 = 462314^2 + 201211^2 .

It is a cyclic number.

It is not a de Polignac number, because 254220101117 - 2⁸ = 254220100861 is a prime.

Together with 254220101119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254220101119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127110050558 + 127110050559.

It is an arithmetic number, because the mean of its divisors is an integer number (127110050559).

Almost surely, 2^254220101117 is an apocalyptic number.

It is an amenable number.

254220101117 is a deficient number, since it is larger than the sum of its proper divisors (1).

254220101117 is an equidigital number, since it uses as much as digits as its factorization.

254220101117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 26.

Adding to 254220101117 its reverse (711101022452), we get a palindrome (965321123569).

The spelling of 254220101117 in words is "two hundred fifty-four billion, two hundred twenty million, one hundred one thousand, one hundred seventeen".