33221066 has 8 divisors (see below), whose sum is σ = 51550020. Its totient is φ = 16037728.

The previous prime is 33221051. The next prime is 33221081. The reversal of 33221066 is 66012233.

It is an interprime number because it is at equal distance from previous prime (33221051) and next prime (33221081).

It can be written as a sum of positive squares in 2 ways, for example, as 32547025 + 674041 = 5705^2 + 821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×33221066² = 2207278452352712, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286331 + ... + 286446.

Almost surely, 2^33221066 is an apocalyptic number.

33221066 is a deficient number, since it is larger than the sum of its proper divisors (18328954).

33221066 is a wasteful number, since it uses less digits than its factorization.

33221066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572808.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 33221066 is about 5763.7718553045. The cubic root of 33221066 is about 321.4680787465.

Adding to 33221066 its reverse (66012233), we get a palindrome (99233299).

The spelling of 33221066 in words is "thirty-three million, two hundred twenty-one thousand, sixty-six".