303213212 has 48 divisors (see below), whose sum is σ = 564732000. Its totient is φ = 142222080.

The previous prime is 303213203. The next prime is 303213217. The reversal of 303213212 is 212312303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303213217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 915887 + ... + 916217.

It is an arithmetic number, because the mean of its divisors is an integer number (11765250).

Almost surely, 2^303213212 is an apocalyptic number.

It is an amenable number.

303213212 is a deficient number, since it is larger than the sum of its proper divisors (261518788).

303213212 is a wasteful number, since it uses less digits than its factorization.

303213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 303213212 is about 17413.0184632073. The cubic root of 303213212 is about 671.8145008355.

Adding to 303213212 its reverse (212312303), we get a palindrome (515525515).

Subtracting from 303213212 its reverse (212312303), we obtain a palindrome (90900909).

It can be divided in two parts, 30321 and 3212, that added together give a palindrome (33533).

The spelling of 303213212 in words is "three hundred three million, two hundred thirteen thousand, two hundred twelve".