213522332 has 6 divisors (see below), whose sum is σ = 373664088. Its totient is φ = 106761164.

The previous prime is 213522311. The next prime is 213522349. The reversal of 213522332 is 233225312.

It is a junction number, because it is equal to n+sod(n) for n = 213522298 and 213522307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26690288 + ... + 26690295.

It is an arithmetic number, because the mean of its divisors is an integer number (62277348).

Almost surely, 2^213522332 is an apocalyptic number.

It is an amenable number.

213522332 is a deficient number, since it is larger than the sum of its proper divisors (160141756).

213522332 is a wasteful number, since it uses less digits than its factorization.

213522332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53380587 (or 53380585 counting only the distinct ones).

The product of its digits is 2160, while the sum is 23.

The square root of 213522332 is about 14612.4033615282. The cubic root of 213522332 is about 597.6970348583.

Adding to 213522332 its reverse (233225312), we get a palindrome (446747644).

The spelling of 213522332 in words is "two hundred thirteen million, five hundred twenty-two thousand, three hundred thirty-two".