303223212 has 18 divisors (see below), whose sum is σ = 766480988. Its totient is φ = 101074392.

The previous prime is 303223201. The next prime is 303223259. The reversal of 303223212 is 212322303.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

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

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, 4211398 + ... + 4211469.

Almost surely, 2^303223212 is an apocalyptic number.

It is an amenable number.

303223212 is an abundant number, since it is smaller than the sum of its proper divisors (463257776).

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

303223212 is a wasteful number, since it uses less digits than its factorization.

303223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8422877 (or 8422872 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 303223212 is about 17413.3056023261. The cubic root of 303223212 is about 671.8218862560.

Adding to 303223212 its reverse (212322303), we get a palindrome (515545515).

Subtracting from 303223212 its reverse (212322303), we obtain a palindrome (90900909).

It can be divided in two parts, 3032 and 23212, that added together give a square (26244 = 162²).

The spelling of 303223212 in words is "three hundred three million, two hundred twenty-three thousand, two hundred twelve".