212225150 has 12 divisors (see below), whose sum is σ = 394738872. Its totient is φ = 84890040.

The previous prime is 212225149. The next prime is 212225173. The reversal of 212225150 is 51522212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2122202 + ... + 2122301.

It is an arithmetic number, because the mean of its divisors is an integer number (32894906).

Almost surely, 2^212225150 is an apocalyptic number.

212225150 is a deficient number, since it is larger than the sum of its proper divisors (182513722).

212225150 is a wasteful number, since it uses less digits than its factorization.

212225150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244515 (or 4244510 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 212225150 is about 14567.9494095772. The cubic root of 212225150 is about 596.4842074284.

Adding to 212225150 its reverse (51522212), we get a palindrome (263747362).

It can be divided in two parts, 2122 and 25150, that added together give a palindrome (27272).

The spelling of 212225150 in words is "two hundred twelve million, two hundred twenty-five thousand, one hundred fifty".