212030222 has 16 divisors (see below), whose sum is σ = 337154400. Its totient is φ = 99660288.

The previous prime is 212030201. The next prime is 212030257. The reversal of 212030222 is 222030212.

It is a junction number, because it is equal to n+sod(n) for n = 212030197 and 212030206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29654 + ... + 36102.

It is an arithmetic number, because the mean of its divisors is an integer number (21072150).

Almost surely, 2^212030222 is an apocalyptic number.

212030222 is a deficient number, since it is larger than the sum of its proper divisors (125124178).

212030222 is a wasteful number, since it uses less digits than its factorization.

212030222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7435.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 212030222 is about 14561.2575693173. The cubic root of 212030222 is about 596.3015286553.

Adding to 212030222 its reverse (222030212), we get a palindrome (434060434).

The spelling of 212030222 in words is "two hundred twelve million, thirty thousand, two hundred twenty-two".