33221201222 has 12 divisors (see below), whose sum is σ = 54773799108. Its totient is φ = 15100545900.

The previous prime is 33221201207. The next prime is 33221201239. The reversal of 33221201222 is 22210212233.

It is a happy number.

It is a super-2 number, since 2×33221201222² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33221201194 and 33221201203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68638604 + ... + 68639087.

It is an arithmetic number, because the mean of its divisors is an integer number (4564483259).

Almost surely, 2^33221201222 is an apocalyptic number.

33221201222 is a deficient number, since it is larger than the sum of its proper divisors (21552597886).

33221201222 is a wasteful number, since it uses less digits than its factorization.

33221201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137277715 (or 137277704 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 33221201222 its reverse (22210212233), we get a palindrome (55431413455).

The spelling of 33221201222 in words is "thirty-three billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty-two".