10121212100 has 36 divisors (see below), whose sum is σ = 22917949824. Its totient is φ = 3872462880.

The previous prime is 10121212099. The next prime is 10121212139. The reversal of 10121212100 is 121212101.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2197964 + ... + 2202563.

Almost surely, 2^10121212100 is an apocalyptic number.

10121212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121212100 is an abundant number, since it is smaller than the sum of its proper divisors (12796737724).

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

10121212100 is a wasteful number, since it uses less digits than its factorization.

10121212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400564 (or 4400557 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10121212100 its reverse (121212101), we get a palindrome (10242424201).

Subtracting from 10121212100 its reverse (121212101), we obtain a palindrome (9999999999).

The spelling of 10121212100 in words is "ten billion, one hundred twenty-one million, two hundred twelve thousand, one hundred".