212201856 has 160 divisors (see below), whose sum is σ = 641043480. Its totient is φ = 69672960.

The previous prime is 212201827. The next prime is 212201881. The reversal of 212201856 is 658102212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1005591 + ... + 1005801.

Almost surely, 2^212201856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212201856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320521740).

212201856 is an abundant number, since it is smaller than the sum of its proper divisors (428841624).

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

212201856 is an equidigital number, since it uses as much as digits as its factorization.

212201856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 212201856 is about 14567.1498928239. The cubic root of 212201856 is about 596.4623831041.

The spelling of 212201856 in words is "two hundred twelve million, two hundred one thousand, eight hundred fifty-six".