212223150 has 36 divisors (see below), whose sum is σ = 570174072. Its totient is φ = 56592720.

The previous prime is 212223149. The next prime is 212223161. The reversal of 212223150 is 51322212.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 17 ways as a sum of consecutive naturals, for example, 235354 + ... + 236253.

Almost surely, 2^212223150 is an apocalyptic number.

212223150 is an abundant number, since it is smaller than the sum of its proper divisors (357950922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212223150 is a wasteful number, since it uses less digits than its factorization.

212223150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471625 (or 471617 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 212223150 is about 14567.8807655747. The cubic root of 212223150 is about 596.4823336760.

Adding to 212223150 its reverse (51322212), we get a palindrome (263545362).

The spelling of 212223150 in words is "two hundred twelve million, two hundred twenty-three thousand, one hundred fifty".