100121110012 has 48 divisors (see below), whose sum is σ = 218474226432. Its totient is φ = 39003194880.

The previous prime is 100121109973. The next prime is 100121110027. The reversal of 100121110012 is 210011121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3148263 + ... + 3179905.

It is an arithmetic number, because the mean of its divisors is an integer number (4551546384).

Almost surely, 2^100121110012 is an apocalyptic number.

It is an amenable number.

100121110012 is an abundant number, since it is smaller than the sum of its proper divisors (118353116420).

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

100121110012 is a wasteful number, since it uses less digits than its factorization.

100121110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41938 (or 41936 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 100121110012 its reverse (210011121001), we get a palindrome (310132231013).

The spelling of 100121110012 in words is "one hundred billion, one hundred twenty-one million, one hundred ten thousand, twelve".