102121210210 has 8 divisors (see below), whose sum is σ = 183818178396. Its totient is φ = 40848484080.

The previous prime is 102121210201. The next prime is 102121210267. The reversal of 102121210210 is 12012121201.

102121210210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 102061719841 + 59490369 = 319471^2 + 7713^2 .

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

It is an unprimeable number.

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, 5106060501 + ... + 5106060520.

Almost surely, 2^102121210210 is an apocalyptic number.

102121210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121210210 is a deficient number, since it is larger than the sum of its proper divisors (81696968186).

102121210210 is a wasteful number, since it uses less digits than its factorization.

102121210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212121028.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102121210210 its reverse (12012121201), we get a palindrome (114133331411).

The spelling of 102121210210 in words is "one hundred two billion, one hundred twenty-one million, two hundred ten thousand, two hundred ten".