302212212 has 12 divisors (see below), whose sum is σ = 705161856. Its totient is φ = 100737400.

The previous prime is 302212199. The next prime is 302212217. The reversal of 302212212 is 212212203.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 302212191 and 302212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302212217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12592164 + ... + 12592187.

It is an arithmetic number, because the mean of its divisors is an integer number (58763488).

Almost surely, 2^302212212 is an apocalyptic number.

It is an amenable number.

302212212 is an abundant number, since it is smaller than the sum of its proper divisors (402949644).

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

302212212 is a wasteful number, since it uses less digits than its factorization.

302212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25184358 (or 25184356 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 302212212 is about 17384.2518389490. The cubic root of 302212212 is about 671.0743970879.

Adding to 302212212 its reverse (212212203), we get a palindrome (514424415).

Subtracting from 302212212 its reverse (212212203), we obtain a palindrome (90000009).

The spelling of 302212212 in words is "three hundred two million, two hundred twelve thousand, two hundred twelve".