33021212222 has 12 divisors (see below), whose sum is σ = 52275964536. Its totient is φ = 15641626500.

The previous prime is 33021212197. The next prime is 33021212227. The reversal of 33021212222 is 22221212033.

It is a happy number.

It is a super-2 number, since 2×33021212222² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33021212194 and 33021212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33021212227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22867154 + ... + 22868597.

It is an arithmetic number, because the mean of its divisors is an integer number (4356330378).

Almost surely, 2^33021212222 is an apocalyptic number.

33021212222 is a deficient number, since it is larger than the sum of its proper divisors (19254752314).

33021212222 is a wasteful number, since it uses less digits than its factorization.

33021212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45735791 (or 45735772 counting only the distinct ones).

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

Adding to 33021212222 its reverse (22221212033), we get a palindrome (55242424255).

The spelling of 33021212222 in words is "thirty-three billion, twenty-one million, two hundred twelve thousand, two hundred twenty-two".