213333212 has 12 divisors (see below), whose sum is σ = 374682840. Its totient is φ = 106280976.

The previous prime is 213333199. The next prime is 213333217. The reversal of 213333212 is 212333312.

It is a super-2 number, since 2×213333212² = 91022118684473888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213333217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95162 + ... + 97377.

It is an arithmetic number, because the mean of its divisors is an integer number (31223570).

Almost surely, 2^213333212 is an apocalyptic number.

It is an amenable number.

213333212 is a deficient number, since it is larger than the sum of its proper divisors (161349628).

213333212 is a wasteful number, since it uses less digits than its factorization.

213333212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192820 (or 192818 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 213333212 is about 14605.9307132411. The cubic root of 213333212 is about 597.5205195943.

Adding to 213333212 its reverse (212333312), we get a palindrome (425666524).

The spelling of 213333212 in words is "two hundred thirteen million, three hundred thirty-three thousand, two hundred twelve".