33213022212 has 48 divisors (see below), whose sum is σ = 83655008640. Its totient is φ = 10224496128.

The previous prime is 33213022201. The next prime is 33213022217. The reversal of 33213022212 is 21222031233.

It is a happy number.

It is a super-2 number, since 2×33213022212² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33213022217) 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, 2066773 + ... + 2082780.

It is an arithmetic number, because the mean of its divisors is an integer number (1742812680).

Almost surely, 2^33213022212 is an apocalyptic number.

It is an amenable number.

33213022212 is an abundant number, since it is smaller than the sum of its proper divisors (50441986428).

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

33213022212 is a wasteful number, since it uses less digits than its factorization.

33213022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149612 (or 4149610 counting only the distinct ones).

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

Adding to 33213022212 its reverse (21222031233), we get a palindrome (54435053445).

The spelling of 33213022212 in words is "thirty-three billion, two hundred thirteen million, twenty-two thousand, two hundred twelve".