213222030 has 96 divisors (see below), whose sum is σ = 614615040. Its totient is φ = 47154240.

The previous prime is 213222013. The next prime is 213222049. The reversal of 213222030 is 30222312.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent 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 47 ways as a sum of consecutive naturals, for example, 43231 + ... + 47909.

It is an arithmetic number, because the mean of its divisors is an integer number (6402240).

Almost surely, 2^213222030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213222030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307307520).

213222030 is an abundant number, since it is smaller than the sum of its proper divisors (401393010).

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

213222030 is a wasteful number, since it uses less digits than its factorization.

213222030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4734 (or 4727 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 213222030 is about 14602.1241605460. The cubic root of 213222030 is about 597.4166991123.

Adding to 213222030 its reverse (30222312), we get a palindrome (243444342).

The spelling of 213222030 in words is "two hundred thirteen million, two hundred twenty-two thousand, thirty".