33166222 has 4 divisors (see below), whose sum is σ = 49749336. Its totient is φ = 16583110.

The previous prime is 33166183. The next prime is 33166223. The reversal of 33166222 is 22266133.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22266133 = 463 ⋅48091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33166223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8291554 + ... + 8291557.

It is an arithmetic number, because the mean of its divisors is an integer number (12437334).

Almost surely, 2^33166222 is an apocalyptic number.

33166222 is a deficient number, since it is larger than the sum of its proper divisors (16583114).

33166222 is a wasteful number, since it uses less digits than its factorization.

33166222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16583113.

The product of its digits is 2592, while the sum is 25.

The square root of 33166222 is about 5759.0122416956. The cubic root of 33166222 is about 321.2910795474.

The spelling of 33166222 in words is "thirty-three million, one hundred sixty-six thousand, two hundred twenty-two".