2120221304 has 8 divisors (see below), whose sum is σ = 3975414960. Its totient is φ = 1060110648.

The previous prime is 2120221273. The next prime is 2120221309. The reversal of 2120221304 is 4031220212.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×2120221304³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120221309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132513824 + ... + 132513839.

It is an arithmetic number, because the mean of its divisors is an integer number (496926870).

Almost surely, 2^2120221304 is an apocalyptic number.

It is an amenable number.

2120221304 is a deficient number, since it is larger than the sum of its proper divisors (1855193656).

2120221304 is a wasteful number, since it uses less digits than its factorization.

2120221304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265027669 (or 265027665 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2120221304 is about 46045.8608780420. The cubic root of 2120221304 is about 1284.6763564912.

Adding to 2120221304 its reverse (4031220212), we get a palindrome (6151441516).

The spelling of 2120221304 in words is "two billion, one hundred twenty million, two hundred twenty-one thousand, three hundred four".