33313222212 has 12 divisors (see below), whose sum is σ = 77730851856. Its totient is φ = 11104407400.

The previous prime is 33313222199. The next prime is 33313222231. The reversal of 33313222212 is 21222231333.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33313222212² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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 3 ways as a sum of consecutive naturals, for example, 1388050914 + ... + 1388050937.

It is an arithmetic number, because the mean of its divisors is an integer number (6477570988).

Almost surely, 2^33313222212 is an apocalyptic number.

It is an amenable number.

33313222212 is an abundant number, since it is smaller than the sum of its proper divisors (44417629644).

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

33313222212 is a wasteful number, since it uses less digits than its factorization.

33313222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776101858 (or 2776101856 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

Adding to 33313222212 its reverse (21222231333), we get a palindrome (54535453545).

The spelling of 33313222212 in words is "thirty-three billion, three hundred thirteen million, two hundred twenty-two thousand, two hundred twelve".