242200143217 has 2 divisors, whose sum is σ = 242200143218. Its totient is φ = 242200143216.

The previous prime is 242200143173. The next prime is 242200143223. The reversal of 242200143217 is 712341002242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138093248881 + 104106894336 = 371609^2 + 322656^2 .

It is a cyclic number.

It is not a de Polignac number, because 242200143217 - 2³¹ = 240052659569 is a prime.

It is a super-2 number, since 2×242200143217² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242200143617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121100071608 + 121100071609.

It is an arithmetic number, because the mean of its divisors is an integer number (121100071609).

Almost surely, 2^242200143217 is an apocalyptic number.

It is an amenable number.

242200143217 is a deficient number, since it is larger than the sum of its proper divisors (1).

242200143217 is an equidigital number, since it uses as much as digits as its factorization.

242200143217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 242200143217 its reverse (712341002242), we get a palindrome (954541145459).

The spelling of 242200143217 in words is "two hundred forty-two billion, two hundred million, one hundred forty-three thousand, two hundred seventeen".