33313320212 has 6 divisors (see below), whose sum is σ = 58298310378. Its totient is φ = 16656660104.

The previous prime is 33313320169. The next prime is 33313320247. The reversal of 33313320212 is 21202331333.

It can be written as a sum of positive squares in only one way, i.e., 31917251716 + 1396068496 = 178654^2 + 37364^2 .

It is a super-2 number, since 2×33313320212² (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 as a sum of consecutive naturals, namely, 4164165023 + ... + 4164165030.

It is an arithmetic number, because the mean of its divisors is an integer number (9716385063).

Almost surely, 2^33313320212 is an apocalyptic number.

It is an amenable number.

33313320212 is a deficient number, since it is larger than the sum of its proper divisors (24984990166).

33313320212 is a wasteful number, since it uses less digits than its factorization.

33313320212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8328330057 (or 8328330055 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 33313320212 its reverse (21202331333), we get a palindrome (54515651545).

The spelling of 33313320212 in words is "thirty-three billion, three hundred thirteen million, three hundred twenty thousand, two hundred twelve".