33212133300221 has 8 divisors (see below), whose sum is σ = 35270137726200. Its totient is φ = 31165723266048.

The previous prime is 33212133300211. The next prime is 33212133300239. The reversal of 33212133300221 is 12200333121233.

It can be written as a sum of positive squares in 4 ways, for example, as 585246420196 + 32626886880025 = 765014^2 + 5711995^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33212133300221 - 2³⁴ = 33194953431037 is a prime.

It is a super-2 number, since 2×33212133300221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33212133300211) 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, 2898592046 + ... + 2898603503.

It is an arithmetic number, because the mean of its divisors is an integer number (4408767215775).

Almost surely, 2^{33212133300221} is an apocalyptic number.

It is an amenable number.

33212133300221 is a deficient number, since it is larger than the sum of its proper divisors (2058004425979).

33212133300221 is a wasteful number, since it uses less digits than its factorization.

33212133300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5797195903.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 33212133300221 its reverse (12200333121233), we get a palindrome (45412466421454).

The spelling of 33212133300221 in words is "thirty-three trillion, two hundred twelve billion, one hundred thirty-three million, three hundred thousand, two hundred twenty-one".