33212221240056 has 16 divisors (see below), whose sum is σ = 83030553100200. Its totient is φ = 11070740413344.

The previous prime is 33212221240027. The next prime is 33212221240057. The reversal of 33212221240056 is 65004212221233.

It is a super-2 number, since 2×33212221240056² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33212221239999 and 33212221240026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33212221240057) by changing a digit.

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, 691921275811 + ... + 691921275858.

Almost surely, 2^{33212221240056} is an apocalyptic number.

It is an amenable number.

33212221240056 is an abundant number, since it is smaller than the sum of its proper divisors (49818331860144).

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

33212221240056 is a wasteful number, since it uses less digits than its factorization.

33212221240056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383842551678 (or 1383842551674 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 33212221240056 its reverse (65004212221233), we get a palindrome (98216433461289).

The spelling of 33212221240056 in words is "thirty-three trillion, two hundred twelve billion, two hundred twenty-one million, two hundred forty thousand, fifty-six".