33140222 has 4 divisors (see below), whose sum is σ = 49710336. Its totient is φ = 16570110.

The previous prime is 33140213. The next prime is 33140227. The reversal of 33140222 is 22204133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22204133 = 7 ⋅3172019.

It is a self number, because there is not a number n which added to its sum of digits gives 33140222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33140227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8285054 + ... + 8285057.

It is an arithmetic number, because the mean of its divisors is an integer number (12427584).

Almost surely, 2^33140222 is an apocalyptic number.

33140222 is a deficient number, since it is larger than the sum of its proper divisors (16570114).

33140222 is a wasteful number, since it uses less digits than its factorization.

33140222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16570113.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 33140222 is about 5756.7544675798. The cubic root of 33140222 is about 321.2071010156.

Adding to 33140222 its reverse (22204133), we get a palindrome (55344355).

The spelling of 33140222 in words is "thirty-three million, one hundred forty thousand, two hundred twenty-two".