33211212213 has 8 divisors (see below), whose sum is σ = 44283671776. Its totient is φ = 22139780400.

The previous prime is 33211212211. The next prime is 33211212259. The reversal of 33211212213 is 31221211233.

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

It is not a de Polignac number, because 33211212213 - 2¹ = 33211212211 is a prime.

It is a super-2 number, since 2×33211212213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33211212213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33211212211) 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, 178078 + ... + 313263.

It is an arithmetic number, because the mean of its divisors is an integer number (5535458972).

Almost surely, 2^33211212213 is an apocalyptic number.

It is an amenable number.

33211212213 is a deficient number, since it is larger than the sum of its proper divisors (11072459563).

33211212213 is a wasteful number, since it uses less digits than its factorization.

33211212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513875.

The product of its digits is 432, while the sum is 21.

Adding to 33211212213 its reverse (31221211233), we get a palindrome (64432423446).

The spelling of 33211212213 in words is "thirty-three billion, two hundred eleven million, two hundred twelve thousand, two hundred thirteen".