212122221000210 has 48 divisors (see below), whose sum is σ = 551519289569664. Its totient is φ = 56565770218656.

The previous prime is 212122221000169. The next prime is 212122221000227. The reversal of 212122221000210 is 12000122221212.

It is a happy number.

212122221000210 is a `hidden beast` number, since 2 + 1 + 21 + 222 + 210 + 0 + 0 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31804759 + ... + 37891781.

It is an arithmetic number, because the mean of its divisors is an integer number (11489985199368).

Almost surely, 2^{212122221000210} is an apocalyptic number.

212122221000210 is an abundant number, since it is smaller than the sum of its proper divisors (339397068569454).

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

212122221000210 is a wasteful number, since it uses less digits than its factorization.

212122221000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6474239 (or 6474236 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212122221000210 its reverse (12000122221212), we get a palindrome (224122343221422).

The spelling of 212122221000210 in words is "two hundred twelve trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred ten", and thus it is an aban number.