212202210 has 64 divisors (see below), whose sum is σ = 557020800. Its totient is φ = 51310080.

The previous prime is 212202191. The next prime is 212202229. The reversal of 212202210 is 12202212.

It is an interprime number because it is at equal distance from previous prime (212202191) and next prime (212202229).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201766 + ... + 202814.

It is an arithmetic number, because the mean of its divisors is an integer number (8703450).

Almost surely, 2^212202210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212202210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278510400).

212202210 is an abundant number, since it is smaller than the sum of its proper divisors (344818590).

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

212202210 is a wasteful number, since it uses less digits than its factorization.

212202210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 212202210 is about 14567.1620434455. The cubic root of 212202210 is about 596.4627147813.

Adding to 212202210 its reverse (12202212), we get a palindrome (224404422).

The spelling of 212202210 in words is "two hundred twelve million, two hundred two thousand, two hundred ten".