100102120210 has 16 divisors (see below), whose sum is σ = 180210217176. Its totient is φ = 40034981248.

The previous prime is 100102120177. The next prime is 100102120211. The reversal of 100102120210 is 12021201001.

It can be written as a sum of positive squares in 4 ways, for example, as 72642647529 + 27459472681 = 269523^2 + 165709^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (100102120211) 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 7 ways as a sum of consecutive naturals, for example, 661357 + ... + 798496.

Almost surely, 2^100102120210 is an apocalyptic number.

100102120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100102120210 is a deficient number, since it is larger than the sum of its proper divisors (80108096966).

100102120210 is a wasteful number, since it uses less digits than its factorization.

100102120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466717.

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

Adding to 100102120210 its reverse (12021201001), we get a palindrome (112123321211).

The spelling of 100102120210 in words is "one hundred billion, one hundred two million, one hundred twenty thousand, two hundred ten".