3346622021 has 4 divisors (see below), whose sum is σ = 3355594572. Its totient is φ = 3337649472.

The previous prime is 3346622009. The next prime is 3346622029. The reversal of 3346622021 is 1202266433.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1010349796 + 2336272225 = 31786^2 + 48335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3346622021 is a prime.

It is a super-2 number, since 2×3346622021² = 22399757902884248882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3346622029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4485716 + ... + 4486461.

It is an arithmetic number, because the mean of its divisors is an integer number (838898643).

Almost surely, 2^3346622021 is an apocalyptic number.

It is an amenable number.

3346622021 is a deficient number, since it is larger than the sum of its proper divisors (8972551).

3346622021 is an equidigital number, since it uses as much as digits as its factorization.

3346622021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8972550.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 3346622021 is about 57849.9958599826. The cubic root of 3346622021 is about 1495.7840163862.

Adding to 3346622021 its reverse (1202266433), we get a palindrome (4548888454).

The spelling of 3346622021 in words is "three billion, three hundred forty-six million, six hundred twenty-two thousand, twenty-one".