100021212021012 has 24 divisors (see below), whose sum is σ = 234429387822336. Its totient is φ = 33190895467968.

The previous prime is 100021212020971. The next prime is 100021212021097. The reversal of 100021212021012 is 210120212120001.

It is a junction number, because it is equal to n+sod(n) for n = 100021212020982 and 100021212021000.

It is a congruent number.

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, 18688564593 + ... + 18688569944.

It is an arithmetic number, because the mean of its divisors is an integer number (9767891159264).

Almost surely, 2^{100021212021012} is an apocalyptic number.

100021212021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100021212021012 is an abundant number, since it is smaller than the sum of its proper divisors (134408175801324).

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

100021212021012 is a wasteful number, since it uses less digits than its factorization.

100021212021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37377134767 (or 37377134765 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100021212021012 its reverse (210120212120001), we get a palindrome (310141424141013).

The spelling of 100021212021012 in words is "one hundred trillion, twenty-one billion, two hundred twelve million, twenty-one thousand, twelve".