33130222212 has 48 divisors (see below), whose sum is σ = 82540846080. Its totient is φ = 10317598368.

The previous prime is 33130222199. The next prime is 33130222219. The reversal of 33130222212 is 21222203133.

It is a happy number.

It is a super-2 number, since 2×33130222212² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33130222219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1383912 + ... + 1407647.

It is an arithmetic number, because the mean of its divisors is an integer number (1719600960).

Almost surely, 2^33130222212 is an apocalyptic number.

It is an amenable number.

33130222212 is an abundant number, since it is smaller than the sum of its proper divisors (49410623868).

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

33130222212 is a wasteful number, since it uses less digits than its factorization.

33130222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791632 (or 2791630 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 33130222212 its reverse (21222203133), we get a palindrome (54352425345).

The spelling of 33130222212 in words is "thirty-three billion, one hundred thirty million, two hundred twenty-two thousand, two hundred twelve".