100121020011212 has 24 divisors (see below), whose sum is σ = 178182731739600. Its totient is φ = 49211680042496.

The previous prime is 100121020011203. The next prime is 100121020011217. The reversal of 100121020011212 is 212110020121001.

It is not an unprimeable number, because it can be changed into a prime (100121020011217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33836864 + ... + 36676632.

It is an arithmetic number, because the mean of its divisors is an integer number (7424280489150).

Almost surely, 2^{100121020011212} is an apocalyptic number.

It is an amenable number.

100121020011212 is a deficient number, since it is larger than the sum of its proper divisors (78061711728388).

100121020011212 is a wasteful number, since it uses less digits than its factorization.

100121020011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989225 (or 2989223 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100121020011212 its reverse (212110020121001), we get a palindrome (312231040132213).

The spelling of 100121020011212 in words is "one hundred trillion, one hundred twenty-one billion, twenty million, eleven thousand, two hundred twelve".