33221023 has 8 divisors (see below), whose sum is σ = 36282960. Its totient is φ = 30166080.

The previous prime is 33221011. The next prime is 33221047. The reversal of 33221023 is 32012233.

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

It is a cyclic number.

It is not a de Polignac number, because 33221023 - 2¹³ = 33212831 is a prime.

It is a super-2 number, since 2×33221023² = 2207272738333058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33220988 and 33221006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33221003) 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, 16761 + ... + 18637.

It is an arithmetic number, because the mean of its divisors is an integer number (4535370).

Almost surely, 2^33221023 is an apocalyptic number.

33221023 is a deficient number, since it is larger than the sum of its proper divisors (3061937).

33221023 is a wasteful number, since it uses less digits than its factorization.

33221023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 33221023 is about 5763.7681251070. The cubic root of 33221023 is about 321.4679400480.

Adding to 33221023 its reverse (32012233), we get a palindrome (65233256).

It can be divided in two parts, 332210 and 23, that added together give a palindrome (332233).

The spelling of 33221023 in words is "thirty-three million, two hundred twenty-one thousand, twenty-three".