33213113212 has 24 divisors (see below), whose sum is σ = 59557628592. Its totient is φ = 16196880000.

The previous prime is 33213113207. The next prime is 33213113221. The reversal of 33213113212 is 21231131233.

It is a super-2 number, since 2×33213113212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585087 + ... + 639337.

It is an arithmetic number, because the mean of its divisors is an integer number (2481567858).

Almost surely, 2^33213113212 is an apocalyptic number.

It is an amenable number.

33213113212 is a deficient number, since it is larger than the sum of its proper divisors (26344515380).

33213113212 is a wasteful number, since it uses less digits than its factorization.

33213113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58029 (or 58027 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 33213113212 its reverse (21231131233), we get a palindrome (54444244445).

The spelling of 33213113212 in words is "thirty-three billion, two hundred thirteen million, one hundred thirteen thousand, two hundred twelve".