33612000212 has 18 divisors (see below), whose sum is σ = 68424429402. Its totient is φ = 14405142864.

The previous prime is 33612000193. The next prime is 33612000271. The reversal of 33612000212 is 21200021633.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21469282576 + 12142717636 = 146524^2 + 110194^2 .

It is a super-2 number, since 2×33612000212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 85744703 + ... + 85745094.

It is an arithmetic number, because the mean of its divisors is an integer number (3801357189).

Almost surely, 2^33612000212 is an apocalyptic number.

It is an amenable number.

33612000212 is an abundant number, since it is smaller than the sum of its proper divisors (34812429190).

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

33612000212 is a wasteful number, since it uses less digits than its factorization.

33612000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171489815 (or 171489806 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 33612000212 its reverse (21200021633), we get a palindrome (54812021845).

The spelling of 33612000212 in words is "thirty-three billion, six hundred twelve million, two hundred twelve", and thus it is an aban number.