100202100120 has 96 divisors (see below), whose sum is σ = 331176502800. Its totient is φ = 26267663616.

The previous prime is 100202100091. The next prime is 100202100121. The reversal of 100202100120 is 21001202001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100202100121) 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 23 ways as a sum of consecutive naturals, for example, 2337567 + ... + 2380046.

Almost surely, 2^100202100120 is an apocalyptic number.

100202100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100202100120 is an abundant number, since it is smaller than the sum of its proper divisors (230974402680).

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

100202100120 is a wasteful number, since it uses less digits than its factorization.

100202100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4717689 (or 4717682 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 100202100120 its reverse (21001202001), we get a palindrome (121203302121).

The spelling of 100202100120 in words is "one hundred billion, two hundred two million, one hundred thousand, one hundred twenty".