102194722267709 has 2 divisors, whose sum is σ = 102194722267710. Its totient is φ = 102194722267708.

The previous prime is 102194722267699. The next prime is 102194722267721. The reversal of 102194722267709 is 907762227491201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102132307238809 + 62415028900 = 10106053^2 + 249830^2 .

It is a cyclic number.

It is not a de Polignac number, because 102194722267709 - 2²⁸ = 102194453832253 is a prime.

It is a super-2 number, since 2×102194722267709² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102194722267789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51097361133854 + 51097361133855.

It is an arithmetic number, because the mean of its divisors is an integer number (51097361133855).

Almost surely, 2^{102194722267709} is an apocalyptic number.

It is an amenable number.

102194722267709 is a deficient number, since it is larger than the sum of its proper divisors (1).

102194722267709 is an equidigital number, since it uses as much as digits as its factorization.

102194722267709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10668672, while the sum is 59.

The spelling of 102194722267709 in words is "one hundred two trillion, one hundred ninety-four billion, seven hundred twenty-two million, two hundred sixty-seven thousand, seven hundred nine".