33322021 has 8 divisors (see below), whose sum is σ = 33782400. Its totient is φ = 32864400.

The previous prime is 33321979. The next prime is 33322039. The reversal of 33322021 is 12022333.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33322021 is a prime.

It is a super-2 number, since 2×33322021² = 2220714167048882, 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 = 33321986 and 33322004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33322061) 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, 35800 + ... + 36718.

It is an arithmetic number, because the mean of its divisors is an integer number (4222800).

Almost surely, 2^33322021 is an apocalyptic number.

It is an amenable number.

33322021 is a deficient number, since it is larger than the sum of its proper divisors (460379).

33322021 is a wasteful number, since it uses less digits than its factorization.

33322021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379.

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

The square root of 33322021 is about 5772.5229319596. The cubic root of 33322021 is about 321.7933842902.

Adding to 33322021 its reverse (12022333), we get a palindrome (45344354).

The spelling of 33322021 in words is "thirty-three million, three hundred twenty-two thousand, twenty-one".