100110210120 has 80 divisors (see below), whose sum is σ = 336481550460. Its totient is φ = 26696055168.

The previous prime is 100110210091. The next prime is 100110210139. The reversal of 100110210120 is 21012011001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 98421493284 + 1688716836 = 313722^2 + 41094^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15445867 + ... + 15452346.

Almost surely, 2^100110210120 is an apocalyptic number.

100110210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100110210120 is an abundant number, since it is smaller than the sum of its proper divisors (236371340340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100110210120 is a wasteful number, since it uses less digits than its factorization.

100110210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30898236 (or 30898223 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100110210120 its reverse (21012011001), we get a palindrome (121122221121).

The spelling of 100110210120 in words is "one hundred billion, one hundred ten million, two hundred ten thousand, one hundred twenty".