210012220208 has 40 divisors (see below), whose sum is σ = 485245632768. Its totient is φ = 86091964992.

The previous prime is 210012220207. The next prime is 210012220247. The reversal of 210012220208 is 802022210012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 210012220208.

It is not an unprimeable number, because it can be changed into a prime (210012220207) 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 7 ways as a sum of consecutive naturals, for example, 40760666 + ... + 40765817.

Almost surely, 2^210012220208 is an apocalyptic number.

210012220208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

210012220208 is an abundant number, since it is smaller than the sum of its proper divisors (275233412560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210012220208 is a wasteful number, since it uses less digits than its factorization.

210012220208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81526521 (or 81526515 counting only the distinct ones).

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

The spelling of 210012220208 in words is "two hundred ten billion, twelve million, two hundred twenty thousand, two hundred eight".