100212012021020 has 12 divisors (see below), whose sum is σ = 210445225244184. Its totient is φ = 40084804808400.

The previous prime is 100212012020903. The next prime is 100212012021031. The reversal of 100212012021020 is 20120210212001.

It is a junction number, because it is equal to n+sod(n) for n = 100212012020986 and 100212012021004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505300300506 + ... + 2505300300545.

It is an arithmetic number, because the mean of its divisors is an integer number (17537102103682).

Almost surely, 2^{100212012021020} is an apocalyptic number.

100212012021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100212012021020 is an abundant number, since it is smaller than the sum of its proper divisors (110233213223164).

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

100212012021020 is a wasteful number, since it uses less digits than its factorization.

100212012021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010600601060 (or 5010600601058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100212012021020 its reverse (20120210212001), we get a palindrome (120332222233021).

The spelling of 100212012021020 in words is "one hundred trillion, two hundred twelve billion, twelve million, twenty-one thousand, twenty".