100121020101212 has 192 divisors, whose sum is σ = 204335550720000. Its totient is φ = 42449240298240.

The previous prime is 100121020101163. The next prime is 100121020101281. The reversal of 100121020101212 is 212101020121001.

It is a super-3 number, since 3×100121020101212³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6561432839 + ... + 6561448097.

It is an arithmetic number, because the mean of its divisors is an integer number (1064247660000).

Almost surely, 2^{100121020101212} is an apocalyptic number.

It is an amenable number.

100121020101212 is an abundant number, since it is smaller than the sum of its proper divisors (104214530618788).

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

100121020101212 is a wasteful number, since it uses less digits than its factorization.

100121020101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15904 (or 15902 counting only the distinct ones).

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

Adding to 100121020101212 its reverse (212101020121001), we get a palindrome (312222040222213).

The spelling of 100121020101212 in words is "one hundred trillion, one hundred twenty-one billion, twenty million, one hundred one thousand, two hundred twelve".