213032222 has 16 divisors (see below), whose sum is σ = 347474400. Its totient is φ = 97366752.

The previous prime is 213032221. The next prime is 213032227. The reversal of 213032222 is 222230312.

It is a super-2 number, since 2×213032222² = 90765455220514568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213032222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213032221) 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, 37097 + ... + 42452.

It is an arithmetic number, because the mean of its divisors is an integer number (21717150).

Almost surely, 2^213032222 is an apocalyptic number.

213032222 is a deficient number, since it is larger than the sum of its proper divisors (134442178).

213032222 is a wasteful number, since it uses less digits than its factorization.

213032222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79667.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 213032222 is about 14595.6233851110. The cubic root of 213032222 is about 597.2393751385.

Adding to 213032222 its reverse (222230312), we get a palindrome (435262534).

The spelling of 213032222 in words is "two hundred thirteen million, thirty-two thousand, two hundred twenty-two".