100120101212 has 48 divisors (see below), whose sum is σ = 179606700000. Its totient is φ = 48818375424.

The previous prime is 100120101199. The next prime is 100120101227. The reversal of 100120101212 is 212101021001.

It is a super-2 number, since 2×100120101212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100120101193 and 100120101202.

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, 39276914 + ... + 39279462.

It is an arithmetic number, because the mean of its divisors is an integer number (3741806250).

Almost surely, 2^100120101212 is an apocalyptic number.

It is an amenable number.

100120101212 is a deficient number, since it is larger than the sum of its proper divisors (79486598788).

100120101212 is a wasteful number, since it uses less digits than its factorization.

100120101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878 (or 3876 counting only the distinct ones).

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

Adding to 100120101212 its reverse (212101021001), we get a palindrome (312221122213).

The spelling of 100120101212 in words is "one hundred billion, one hundred twenty million, one hundred one thousand, two hundred twelve".