102100210210 has 8 divisors (see below), whose sum is σ = 183780378396. Its totient is φ = 40840084080.

The previous prime is 102100210193. The next prime is 102100210213. The reversal of 102100210210 is 12012001201.

It can be written as a sum of positive squares in 2 ways, for example, as 86178060721 + 15922149489 = 293561^2 + 126183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 10210021021 = 102100210210 / (1 + 0 + 2 + 1 + 0 + 0 + 2 + 1 + 0 + 2 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (102100210213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105010501 + ... + 5105010520.

Almost surely, 2^102100210210 is an apocalyptic number.

102100210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102100210210 is a deficient number, since it is larger than the sum of its proper divisors (81680168186).

102100210210 is a wasteful number, since it uses less digits than its factorization.

102100210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10210021028.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102100210210 its reverse (12012001201), we get a palindrome (114112211411).

The spelling of 102100210210 in words is "one hundred two billion, one hundred million, two hundred ten thousand, two hundred ten".