33211222 has 16 divisors (see below), whose sum is σ = 55611072. Its totient is φ = 14744520.

The previous prime is 33211219. The next prime is 33211229. The reversal of 33211222 is 22211233.

It is a super-2 number, since 2×33211222² = 2205970533466568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33211196 and 33211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33211229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16608 + ... + 18499.

It is an arithmetic number, because the mean of its divisors is an integer number (3475692).

Almost surely, 2^33211222 is an apocalyptic number.

33211222 is a deficient number, since it is larger than the sum of its proper divisors (22399850).

33211222 is a wasteful number, since it uses less digits than its factorization.

33211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35163.

The product of its digits is 144, while the sum is 16.

The square root of 33211222 is about 5762.9178373459. The cubic root of 33211222 is about 321.4363233498.

Adding to 33211222 its reverse (22211233), we get a palindrome (55422455).

It can be divided in two parts, 33211 and 222, that added together give a palindrome (33433).

The spelling of 33211222 in words is "thirty-three million, two hundred eleven thousand, two hundred twenty-two".