100021212112 has 20 divisors (see below), whose sum is σ = 197914314816. Its totient is φ = 48946550240.

The previous prime is 100021212107. The next prime is 100021212127. The reversal of 100021212112 is 211212120001.

It is a junction number, because it is equal to n+sod(n) for n = 100021212092 and 100021212101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66502714 + ... + 66504217.

Almost surely, 2^100021212112 is an apocalyptic number.

It is an amenable number.

100021212112 is a deficient number, since it is larger than the sum of its proper divisors (97893102704).

100021212112 is a wasteful number, since it uses less digits than its factorization.

100021212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133006986 (or 133006980 counting only the distinct ones).

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

Adding to 100021212112 its reverse (211212120001), we get a palindrome (311233332113).

The spelling of 100021212112 in words is "one hundred billion, twenty-one million, two hundred twelve thousand, one hundred twelve".