242120482217 has 2 divisors, whose sum is σ = 242120482218. Its totient is φ = 242120482216.

The previous prime is 242120482183. The next prime is 242120482231. The reversal of 242120482217 is 712284021242.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229422798361 + 12697683856 = 478981^2 + 112684^2 .

It is a cyclic number.

It is not a de Polignac number, because 242120482217 - 2³² = 237825514921 is a prime.

It is a super-2 number, since 2×242120482217² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242120482267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121060241108 + 121060241109.

It is an arithmetic number, because the mean of its divisors is an integer number (121060241109).

Almost surely, 2^242120482217 is an apocalyptic number.

It is an amenable number.

242120482217 is a deficient number, since it is larger than the sum of its proper divisors (1).

242120482217 is an equidigital number, since it uses as much as digits as its factorization.

242120482217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28672, while the sum is 35.

The spelling of 242120482217 in words is "two hundred forty-two billion, one hundred twenty million, four hundred eighty-two thousand, two hundred seventeen".