102421214439499 has 2 divisors, whose sum is σ = 102421214439500. Its totient is φ = 102421214439498.

The previous prime is 102421214439463. The next prime is 102421214439503. The reversal of 102421214439499 is 994934412124201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102421214439499 - 2¹³ = 102421214431307 is a prime.

It is not a weakly prime, because it can be changed into another prime (102421214439799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51210607219749 + 51210607219750.

It is an arithmetic number, because the mean of its divisors is an integer number (51210607219750).

Almost surely, 2^{102421214439499} is an apocalyptic number.

102421214439499 is a deficient number, since it is larger than the sum of its proper divisors (1).

102421214439499 is an equidigital number, since it uses as much as digits as its factorization.

102421214439499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 102421214439499 in words is "one hundred two trillion, four hundred twenty-one billion, two hundred fourteen million, four hundred thirty-nine thousand, four hundred ninety-nine".