3321020121 has 8 divisors (see below), whose sum is σ = 4511574720. Its totient is φ = 2172239472.

The previous prime is 3321020119. The next prime is 3321020147. The reversal of 3321020121 is 1210201233.

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

It is not a de Polignac number, because 3321020121 - 2¹ = 3321020119 is a prime.

It is a super-2 number, since 2×3321020121² = 22058349288173709282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3321020121.

It is not an unprimeable number, because it can be changed into a prime (3321024121) 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, 10443301 + ... + 10443618.

It is an arithmetic number, because the mean of its divisors is an integer number (563946840).

Almost surely, 2^3321020121 is an apocalyptic number.

It is an amenable number.

3321020121 is a deficient number, since it is larger than the sum of its proper divisors (1190554599).

3321020121 is a wasteful number, since it uses less digits than its factorization.

3321020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20886975.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3321020121 is about 57628.2927128680. The cubic root of 3321020121 is about 1491.9599630896.

Adding to 3321020121 its reverse (1210201233), we get a palindrome (4531221354).

The spelling of 3321020121 in words is "three billion, three hundred twenty-one million, twenty thousand, one hundred twenty-one".