102102199499 has 2 divisors, whose sum is σ = 102102199500. Its totient is φ = 102102199498.

The previous prime is 102102199477. The next prime is 102102199523. The reversal of 102102199499 is 994991201201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102102199499 - 2²⁰ = 102101150923 is a prime.

It is not a weakly prime, because it can be changed into another prime (102102199469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051099749 + 51051099750.

It is an arithmetic number, because the mean of its divisors is an integer number (51051099750).

Almost surely, 2^102102199499 is an apocalyptic number.

102102199499 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102199499 is an equidigital number, since it uses as much as digits as its factorization.

102102199499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 47.

The spelling of 102102199499 in words is "one hundred two billion, one hundred two million, one hundred ninety-nine thousand, four hundred ninety-nine".