100121002012 has 12 divisors (see below), whose sum is σ = 182829656016. Its totient is φ = 47883957440.

The previous prime is 100121002001. The next prime is 100121002043. The reversal of 100121002012 is 210200121001.

It is a self number, because there is not a number n which added to its sum of digits gives 100121002012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544135789 + ... + 544135972.

It is an arithmetic number, because the mean of its divisors is an integer number (15235804668).

Almost surely, 2^100121002012 is an apocalyptic number.

It is an amenable number.

100121002012 is a deficient number, since it is larger than the sum of its proper divisors (82708654004).

100121002012 is a wasteful number, since it uses less digits than its factorization.

100121002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088271788 (or 1088271786 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100121002012 its reverse (210200121001), we get a palindrome (310321123013).

The spelling of 100121002012 in words is "one hundred billion, one hundred twenty-one million, two thousand, twelve".