212220708 has 96 divisors (see below), whose sum is σ = 583296000. Its totient is φ = 58803840.

The previous prime is 212220649. The next prime is 212220713. The reversal of 212220708 is 807022212.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425043 + ... + 425541.

It is an arithmetic number, because the mean of its divisors is an integer number (6076000).

Almost surely, 2^212220708 is an apocalyptic number.

212220708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212220708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291648000).

212220708 is an abundant number, since it is smaller than the sum of its proper divisors (371075292).

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

212220708 is a wasteful number, since it uses less digits than its factorization.

212220708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 212220708 is about 14567.7969508090. The cubic root of 212220708 is about 596.4800458083.

The spelling of 212220708 in words is "two hundred twelve million, two hundred twenty thousand, seven hundred eight".