100221011212 has 48 divisors (see below), whose sum is σ = 201369646912. Its totient is φ = 42753484800.

The previous prime is 100221011179. The next prime is 100221011237. The reversal of 100221011212 is 212110122001.

It is a junction number, because it is equal to n+sod(n) for n = 100221011192 and 100221011201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6416212 + ... + 6431812.

Almost surely, 2^100221011212 is an apocalyptic number.

It is an amenable number.

100221011212 is an abundant number, since it is smaller than the sum of its proper divisors (101148635700).

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

100221011212 is a wasteful number, since it uses less digits than its factorization.

100221011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16658 (or 16656 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100221011212 its reverse (212110122001), we get a palindrome (312331133213).

The spelling of 100221011212 in words is "one hundred billion, two hundred twenty-one million, eleven thousand, two hundred twelve".