33212222312 has 32 divisors (see below), whose sum is σ = 67180120200. Its totient is φ = 15334385664.

The previous prime is 33212222311. The next prime is 33212222359. The reversal of 33212222312 is 21322221233.

It can be written as a sum of positive squares in 4 ways, for example, as 33038878756 + 173343556 = 181766^2 + 13166^2 .

It is a super-2 number, since 2×33212222312² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33212222311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2296637 + ... + 2311052.

Almost surely, 2^33212222312 is an apocalyptic number.

It is an amenable number.

33212222312 is an abundant number, since it is smaller than the sum of its proper divisors (33967897888).

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

33212222312 is a wasteful number, since it uses less digits than its factorization.

33212222312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607765 (or 4607761 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

Adding to 33212222312 its reverse (21322221233), we get a palindrome (54534443545).

The spelling of 33212222312 in words is "thirty-three billion, two hundred twelve million, two hundred twenty-two thousand, three hundred twelve".