212291970208 has 48 divisors (see below), whose sum is σ = 419061928320. Its totient is φ = 105863936256.

The previous prime is 212291970199. The next prime is 212291970211. The reversal of 212291970208 is 802079192212.

It is a happy number.

It is a super-2 number, since 2×212291970208² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 19903885 + ... + 19914547.

It is an arithmetic number, because the mean of its divisors is an integer number (8730456840).

Almost surely, 2^212291970208 is an apocalyptic number.

It is an amenable number.

212291970208 is a deficient number, since it is larger than the sum of its proper divisors (206769958112).

212291970208 is a wasteful number, since it uses less digits than its factorization.

212291970208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12269 (or 12261 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 212291970208 in words is "two hundred twelve billion, two hundred ninety-one million, nine hundred seventy thousand, two hundred eight".