33212321320 has 32 divisors (see below), whose sum is σ = 79123473000. Its totient is φ = 12503461888.

The previous prime is 33212321291. The next prime is 33212321321. The reversal of 33212321320 is 2312321233.

It can be written as a sum of positive squares in 4 ways, for example, as 26121670884 + 7090650436 = 161622^2 + 84206^2 .

It is a super-2 number, since 2×33212321320² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33212321291 and 33212321300.

It is not an unprimeable number, because it can be changed into a prime (33212321321) 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, 24420145 + ... + 24421504.

Almost surely, 2^33212321320 is an apocalyptic number.

It is an amenable number.

33212321320 is an abundant number, since it is smaller than the sum of its proper divisors (45911151680).

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

33212321320 is a wasteful number, since it uses less digits than its factorization.

33212321320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48841677 (or 48841673 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 33212321320 its reverse (2312321233), we get a palindrome (35524642553).

The spelling of 33212321320 in words is "thirty-three billion, two hundred twelve million, three hundred twenty-one thousand, three hundred twenty".