33302221212 has 48 divisors (see below), whose sum is σ = 83696028192. Its totient is φ = 10245181440.

The previous prime is 33302221201. The next prime is 33302221279. The reversal of 33302221212 is 21212220333.

It is a happy number.

It is a super-2 number, since 2×33302221212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1247428 + ... + 1273844.

It is an arithmetic number, because the mean of its divisors is an integer number (1743667254).

Almost surely, 2^33302221212 is an apocalyptic number.

It is an amenable number.

33302221212 is an abundant number, since it is smaller than the sum of its proper divisors (50393806980).

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

33302221212 is a wasteful number, since it uses less digits than its factorization.

33302221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34518 (or 34516 counting only the distinct ones).

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

Adding to 33302221212 its reverse (21212220333), we get a palindrome (54514441545).

The spelling of 33302221212 in words is "thirty-three billion, three hundred two million, two hundred twenty-one thousand, two hundred twelve".