33001212212 has 12 divisors (see below), whose sum is σ = 57787936836. Its totient is φ = 16490373120.

The previous prime is 33001212203. The next prime is 33001212229. The reversal of 33001212212 is 21221210033.

It can be written as a sum of positive squares in 2 ways, for example, as 16018952356 + 16982259856 = 126566^2 + 130316^2 .

It is a super-2 number, since 2×33001212212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550989 + ... + 2563892.

It is an arithmetic number, because the mean of its divisors is an integer number (4815661403).

Almost surely, 2^33001212212 is an apocalyptic number.

It is an amenable number.

33001212212 is a deficient number, since it is larger than the sum of its proper divisors (24786724624).

33001212212 is a wasteful number, since it uses less digits than its factorization.

33001212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5116498 (or 5116496 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 33001212212 its reverse (21221210033), we get a palindrome (54222422245).

The spelling of 33001212212 in words is "thirty-three billion, one million, two hundred twelve thousand, two hundred twelve".