33022201221 has 24 divisors (see below), whose sum is σ = 48933859104. Its totient is φ = 21451491360.

The previous prime is 33022201189. The next prime is 33022201237. The reversal of 33022201221 is 12210222033.

It is not a de Polignac number, because 33022201221 - 2⁵ = 33022201189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33022201194 and 33022201203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33022201321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222331 + ... + 339816.

It is an arithmetic number, because the mean of its divisors is an integer number (2038910796).

Almost surely, 2^33022201221 is an apocalyptic number.

It is an amenable number.

33022201221 is a deficient number, since it is larger than the sum of its proper divisors (15911657883).

33022201221 is a wasteful number, since it uses less digits than its factorization.

33022201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562321 (or 562318 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 33022201221 its reverse (12210222033), we get a palindrome (45232423254).

It can be divided in two parts, 330222012 and 21, that added together give a palindrome (330222033).

The spelling of 33022201221 in words is "thirty-three billion, twenty-two million, two hundred one thousand, two hundred twenty-one".