303121102212 has 18 divisors (see below), whose sum is σ = 766222786238. Its totient is φ = 101040367392.

The previous prime is 303121102189. The next prime is 303121102231. The reversal of 303121102212 is 212201121303.

303121102212 is a `hidden beast` number, since 30 + 312 + 110 + 2 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 230751493956 + 72369608256 = 480366^2 + 269016^2 .

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4210015273 + ... + 4210015344.

Almost surely, 2^303121102212 is an apocalyptic number.

It is an amenable number.

303121102212 is an abundant number, since it is smaller than the sum of its proper divisors (463101684026).

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

303121102212 is a wasteful number, since it uses less digits than its factorization.

303121102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8420030627 (or 8420030622 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 303121102212 its reverse (212201121303), we get a palindrome (515322223515).

The spelling of 303121102212 in words is "three hundred three billion, one hundred twenty-one million, one hundred two thousand, two hundred twelve".