100121110002020 has 24 divisors (see below), whose sum is σ = 210255042076800. Its totient is φ = 40048308558432.

The previous prime is 100121110001917. The next prime is 100121110002041. The reversal of 100121110002020 is 20200011121001.

It is a junction number, because it is equal to n+sod(n) for n = 100121110001992 and 100121110002010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2293850 + ... + 14335409.

It is an arithmetic number, because the mean of its divisors is an integer number (8760626753200).

Almost surely, 2^{100121110002020} is an apocalyptic number.

100121110002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100121110002020 is an abundant number, since it is smaller than the sum of its proper divisors (110133932074780).

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

100121110002020 is a wasteful number, since it uses less digits than its factorization.

100121110002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16930307 (or 16930305 counting only the distinct ones).

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

Adding to 100121110002020 its reverse (20200011121001), we get a palindrome (120321121123021).

The spelling of 100121110002020 in words is "one hundred trillion, one hundred twenty-one billion, one hundred ten million, two thousand, twenty".