3321212220320 has 48 divisors (see below), whose sum is σ = 7849107477288. Its totient is φ = 1328020362240.

The previous prime is 3321212220311. The next prime is 3321212220329. The reversal of 3321212220320 is 230222121233.

It is an interprime number because it is at equal distance from previous prime (3321212220311) and next prime (3321212220329).

It can be written as a sum of positive squares in 4 ways, for example, as 2536209132304 + 785003088016 = 1592548^2 + 886004^2 .

It is a super-2 number, since 2×3321212220320² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3321212220329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3169919 + ... + 4085438.

Almost surely, 2^{3321212220320} is an apocalyptic number.

It is an amenable number.

3321212220320 is an abundant number, since it is smaller than the sum of its proper divisors (4527895256968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3321212220320 is a wasteful number, since it uses less digits than its factorization.

3321212220320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7258233 (or 7258225 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 3321212220320 its reverse (230222121233), we get a palindrome (3551434341553).

The spelling of 3321212220320 in words is "three trillion, three hundred twenty-one billion, two hundred twelve million, two hundred twenty thousand, three hundred twenty".