2033212022221 has 4 divisors (see below), whose sum is σ = 2033214910012. Its totient is φ = 2033209134432.

The previous prime is 2033212022209. The next prime is 2033212022227. The reversal of 2033212022221 is 1222202123302.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 250290084100 + 1782921938121 = 500290^2 + 1335261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2033212022221 is a prime.

It is a super-2 number, since 2×2033212022221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2033212022192 and 2033212022201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2033212022227) 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, 381145 + ... + 2052241.

It is an arithmetic number, because the mean of its divisors is an integer number (508303727503).

Almost surely, 2^{2033212022221} is an apocalyptic number.

It is an amenable number.

2033212022221 is a deficient number, since it is larger than the sum of its proper divisors (2887791).

2033212022221 is a wasteful number, since it uses less digits than its factorization.

2033212022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887790.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2033212022221 its reverse (1222202123302), we get a palindrome (3255414145523).

The spelling of 2033212022221 in words is "two trillion, thirty-three billion, two hundred twelve million, twenty-two thousand, two hundred twenty-one".