100000001121212 has 24 divisors (see below), whose sum is σ = 184211510595840. Its totient is φ = 47368169014320.

The previous prime is 100000001121187. The next prime is 100000001121221. The reversal of 100000001121212 is 212121100000001.

It is a junction number, because it is equal to n+sod(n) for n = 100000001121193 and 100000001121202.

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, 11244887 + ... + 18067857.

It is an arithmetic number, because the mean of its divisors is an integer number (7675479608160).

Almost surely, 2^{100000001121212} is an apocalyptic number.

It is an amenable number.

100000001121212 is a deficient number, since it is larger than the sum of its proper divisors (84211509474628).

100000001121212 is a wasteful number, since it uses less digits than its factorization.

100000001121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7015841 (or 7015839 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100000001121212 its reverse (212121100000001), we get a palindrome (312121101121213).

The spelling of 100000001121212 in words is "one hundred trillion, one million, one hundred twenty-one thousand, two hundred twelve".