10000121100 has 72 divisors (see below), whose sum is σ = 29220244368. Its totient is φ = 2640288000.

The previous prime is 10000121099. The next prime is 10000121147. The reversal of 10000121100 is 112100001.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134719 + ... + 195318.

Almost surely, 2^10000121100 is an apocalyptic number.

10000121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10000121100 is an abundant number, since it is smaller than the sum of its proper divisors (19220123268).

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

10000121100 is a wasteful number, since it uses less digits than its factorization.

10000121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330155 (or 330148 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 10000121100 its reverse (112100001), we get a palindrome (10112221101).

The spelling of 10000121100 in words is "ten billion, one hundred twenty-one thousand, one hundred".