102102120210019 has 4 divisors (see below), whose sum is σ = 102106549249696. Its totient is φ = 102097691170344.

The previous prime is 102102120209989. The next prime is 102102120210037. The reversal of 102102120210019 is 910012021201201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102102120210019 - 2²⁷ = 102101985992291 is a prime.

It is a super-3 number, since 3×102102120210019³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102102120210919) 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 in 3 ways as a sum of consecutive naturals, for example, 2214485259 + ... + 2214531364.

It is an arithmetic number, because the mean of its divisors is an integer number (25526637312424).

Almost surely, 2^{102102120210019} is an apocalyptic number.

102102120210019 is a deficient number, since it is larger than the sum of its proper divisors (4429039677).

102102120210019 is an equidigital number, since it uses as much as digits as its factorization.

102102120210019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429039676.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 102102120210019 in words is "one hundred two trillion, one hundred two billion, one hundred twenty million, two hundred ten thousand, nineteen".