33216220511612 has 12 divisors (see below), whose sum is σ = 58703914469256. Its totient is φ = 16443673520400.

The previous prime is 33216220511609. The next prime is 33216220511627. The reversal of 33216220511612 is 21611502261233.

It is a super-2 number, since 2×33216220511612² (a number of 28 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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41109183398 + ... + 41109184205.

It is an arithmetic number, because the mean of its divisors is an integer number (4891992872438).

Almost surely, 2^{33216220511612} is an apocalyptic number.

It is an amenable number.

33216220511612 is a deficient number, since it is larger than the sum of its proper divisors (25487693957644).

33216220511612 is a wasteful number, since it uses less digits than its factorization.

33216220511612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82218367708 (or 82218367706 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 33216220511612 its reverse (21611502261233), we get a palindrome (54827722772845).

The spelling of 33216220511612 in words is "thirty-three trillion, two hundred sixteen billion, two hundred twenty million, five hundred eleven thousand, six hundred twelve".