212023222 has 8 divisors (see below), whose sum is σ = 318398472. Its totient is φ = 105890400.

The previous prime is 212023199. The next prime is 212023241. The reversal of 212023222 is 222320212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×212023222² = 89907693334522568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212023196 and 212023205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58404 + ... + 61927.

It is an arithmetic number, because the mean of its divisors is an integer number (39799809).

Almost surely, 2^212023222 is an apocalyptic number.

212023222 is a deficient number, since it is larger than the sum of its proper divisors (106375250).

212023222 is a wasteful number, since it uses less digits than its factorization.

212023222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121214.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 212023222 is about 14561.0172034786. The cubic root of 212023222 is about 596.2949664514.

Adding to 212023222 its reverse (222320212), we get a palindrome (434343434).

The spelling of 212023222 in words is "two hundred twelve million, twenty-three thousand, two hundred twenty-two".