207222978871 has 2 divisors, whose sum is σ = 207222978872. Its totient is φ = 207222978870.

The previous prime is 207222978817. The next prime is 207222978899. The reversal of 207222978871 is 178879222702.

Together with previous prime (207222978817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 207222978871 - 2¹⁵ = 207222946103 is a prime.

It is a super-3 number, since 3×207222978871³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (207222978071) 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, 103611489435 + 103611489436.

It is an arithmetic number, because the mean of its divisors is an integer number (103611489436).

Almost surely, 2^207222978871 is an apocalyptic number.

207222978871 is a deficient number, since it is larger than the sum of its proper divisors (1).

207222978871 is an equidigital number, since it uses as much as digits as its factorization.

207222978871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3161088, while the sum is 55.

The spelling of 207222978871 in words is "two hundred seven billion, two hundred twenty-two million, nine hundred seventy-eight thousand, eight hundred seventy-one".