33212302213 has 4 divisors (see below), whose sum is σ = 33213164140. Its totient is φ = 33211440288.

The previous prime is 33212302199. The next prime is 33212302217. The reversal of 33212302213 is 31220321233.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22236177924 + 10976124289 = 149118^2 + 104767^2 .

It is a cyclic number.

It is not a de Polignac number, because 33212302213 - 2⁵ = 33212302181 is a prime.

It is a super-2 number, since 2×33212302213² (a number of 22 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 (33212302217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370320 + ... + 451177.

It is an arithmetic number, because the mean of its divisors is an integer number (8303291035).

Almost surely, 2^33212302213 is an apocalyptic number.

It is an amenable number.

33212302213 is a deficient number, since it is larger than the sum of its proper divisors (861927).

33212302213 is an equidigital number, since it uses as much as digits as its factorization.

33212302213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861926.

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

Adding to 33212302213 its reverse (31220321233), we get a palindrome (64432623446).

The spelling of 33212302213 in words is "thirty-three billion, two hundred twelve million, three hundred two thousand, two hundred thirteen".