100000122212 has 6 divisors (see below), whose sum is σ = 175000213878. Its totient is φ = 50000061104.

The previous prime is 100000122197. The next prime is 100000122217. The reversal of 100000122212 is 212221000001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 89296978276 + 10703143936 = 298826^2 + 103456^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100000122193 and 100000122202.

It is not an unprimeable number, because it can be changed into a prime (100000122217) by changing a digit.

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 as a sum of consecutive naturals, namely, 12500015273 + ... + 12500015280.

It is an arithmetic number, because the mean of its divisors is an integer number (29166702313).

Almost surely, 2^100000122212 is an apocalyptic number.

It is an amenable number.

100000122212 is a deficient number, since it is larger than the sum of its proper divisors (75000091666).

100000122212 is a wasteful number, since it uses less digits than its factorization.

100000122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25000030557 (or 25000030555 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100000122212 its reverse (212221000001), we get a palindrome (312221122213).

The spelling of 100000122212 in words is "one hundred billion, one hundred twenty-two thousand, two hundred twelve".