100001221022212 has 12 divisors (see below), whose sum is σ = 175003303921740. Its totient is φ = 50000277044576.

The previous prime is 100001221022203. The next prime is 100001221022231. The reversal of 100001221022212 is 212220122100001.

It is a happy number.

100001221022212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41692022508096 + 58309198514116 = 6456936^2 + 7636046^2 .

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, 82691287 + ... + 83891902.

It is an arithmetic number, because the mean of its divisors is an integer number (14583608660145).

Almost surely, 2^{100001221022212} is an apocalyptic number.

It is an amenable number.

100001221022212 is a deficient number, since it is larger than the sum of its proper divisors (75002082899528).

100001221022212 is a wasteful number, since it uses less digits than its factorization.

100001221022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166733270 (or 166733268 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100001221022212 its reverse (212220122100001), we get a palindrome (312221343122213).

The spelling of 100001221022212 in words is "one hundred trillion, one billion, two hundred twenty-one million, twenty-two thousand, two hundred twelve".