102102211102005 has 48 divisors (see below), whose sum is σ = 187788846308544. Its totient is φ = 51141559948800.

The previous prime is 102102211101929. The next prime is 102102211102009. The reversal of 102102211102005 is 500201112201201.

It is not a de Polignac number, because 102102211102005 - 2¹⁷ = 102102210970933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102211102009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142540971 + ... + 143255480.

It is an arithmetic number, because the mean of its divisors is an integer number (3912267631428).

Almost surely, 2^{102102211102005} is an apocalyptic number.

102102211102005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102102211102005 is a deficient number, since it is larger than the sum of its proper divisors (85686635206539).

102102211102005 is a wasteful number, since it uses less digits than its factorization.

102102211102005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285796946 (or 285796943 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 102102211102005 its reverse (500201112201201), we get a palindrome (602303323303206).

The spelling of 102102211102005 in words is "one hundred two trillion, one hundred two billion, two hundred eleven million, one hundred two thousand, five".