212122020008 has 16 divisors (see below), whose sum is σ = 403177128180. Its totient is φ = 104608119168.

The previous prime is 212122020007. The next prime is 212122020013. The reversal of 212122020008 is 800020221212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 206572068004 + 5549952004 = 454502^2 + 74498^2 .

It is not an unprimeable number, because it can be changed into a prime (212122020007) 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 in 3 ways as a sum of consecutive naturals, for example, 181610735 + ... + 181611902.

Almost surely, 2^212122020008 is an apocalyptic number.

It is an amenable number.

212122020008 is a deficient number, since it is larger than the sum of its proper divisors (191055108172).

212122020008 is a wasteful number, since it uses less digits than its factorization.

212122020008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363222716 (or 363222712 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The spelling of 212122020008 in words is "two hundred twelve billion, one hundred twenty-two million, twenty thousand, eight".