242210551481 has 2 divisors, whose sum is σ = 242210551482. Its totient is φ = 242210551480.

The previous prime is 242210551433. The next prime is 242210551487. The reversal of 242210551481 is 184155012242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237056029456 + 5154522025 = 486884^2 + 71795^2 .

It is a cyclic number.

It is not a de Polignac number, because 242210551481 - 2²² = 242206357177 is a prime.

It is a super-2 number, since 2×242210551481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242210551487) 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, 121105275740 + 121105275741.

It is an arithmetic number, because the mean of its divisors is an integer number (121105275741).

Almost surely, 2^242210551481 is an apocalyptic number.

It is an amenable number.

242210551481 is a deficient number, since it is larger than the sum of its proper divisors (1).

242210551481 is an equidigital number, since it uses as much as digits as its factorization.

242210551481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25600, while the sum is 35.

The spelling of 242210551481 in words is "two hundred forty-two billion, two hundred ten million, five hundred fifty-one thousand, four hundred eighty-one".