213222310 has 16 divisors (see below), whose sum is σ = 438628896. Its totient is φ = 73104768.

The previous prime is 213222293. The next prime is 213222311. The reversal of 213222310 is 13222312.

213222310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213222310² = 90927506963472200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213222311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1522947 + ... + 1523086.

It is an arithmetic number, because the mean of its divisors is an integer number (27414306).

Almost surely, 2^213222310 is an apocalyptic number.

213222310 is an abundant number, since it is smaller than the sum of its proper divisors (225406586).

213222310 is a wasteful number, since it uses less digits than its factorization.

213222310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046047.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 213222310 is about 14602.1337481890. The cubic root of 213222310 is about 597.4169606184.

Adding to 213222310 its reverse (13222312), we get a palindrome (226444622).

It can be divided in two parts, 21322 and 2310, that added together give a palindrome (23632).

The spelling of 213222310 in words is "two hundred thirteen million, two hundred twenty-two thousand, three hundred ten".