33543240212 has 12 divisors (see below), whose sum is σ = 58755589620. Its totient is φ = 16755928896.

The previous prime is 33543240191. The next prime is 33543240221. The reversal of 33543240212 is 21204234533.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23221492996 + 10321747216 = 152386^2 + 101596^2 .

It is a super-2 number, since 2×33543240212² (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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3917993 + ... + 3926544.

It is an arithmetic number, because the mean of its divisors is an integer number (4896299135).

Almost surely, 2^33543240212 is an apocalyptic number.

It is an amenable number.

33543240212 is a deficient number, since it is larger than the sum of its proper divisors (25212349408).

33543240212 is a wasteful number, since it uses less digits than its factorization.

33543240212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7845610 (or 7845608 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 33543240212 its reverse (21204234533), we get a palindrome (54747474745).

The spelling of 33543240212 in words is "thirty-three billion, five hundred forty-three million, two hundred forty thousand, two hundred twelve".