3310120021 has 12 divisors (see below), whose sum is σ = 3587133060. Its totient is φ = 3053107200.

The previous prime is 3310119983. The next prime is 3310120063. The reversal of 3310120021 is 1200210133.

It can be written as a sum of positive squares in 6 ways, for example, as 923308996 + 2386811025 = 30386^2 + 48855^2 .

It is not a de Polignac number, because 3310120021 - 2¹³ = 3310111829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3310119983 and 3310120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3310120081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231171 + ... + 245071.

It is an arithmetic number, because the mean of its divisors is an integer number (298927755).

Almost surely, 2^3310120021 is an apocalyptic number.

It is an amenable number.

3310120021 is a deficient number, since it is larger than the sum of its proper divisors (277013039).

3310120021 is a wasteful number, since it uses less digits than its factorization.

3310120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15336 (or 15323 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3310120021 is about 57533.6425146192. The cubic root of 3310120021 is about 1490.3258931614.

Adding to 3310120021 its reverse (1200210133), we get a palindrome (4510330154).

The spelling of 3310120021 in words is "three billion, three hundred ten million, one hundred twenty thousand, twenty-one".