3302120021 has 4 divisors (see below), whose sum is σ = 3303618432. Its totient is φ = 3300621612.

The previous prime is 3302120009. The next prime is 3302120089. The reversal of 3302120021 is 1200212033.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1200212033 = 19753 ⋅60761.

It is a cyclic number.

It is not a de Polignac number, because 3302120021 - 2¹⁸ = 3301857877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3302119978 and 3302120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3302120621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745895 + ... + 750308.

It is an arithmetic number, because the mean of its divisors is an integer number (825904608).

Almost surely, 2^3302120021 is an apocalyptic number.

It is an amenable number.

3302120021 is a deficient number, since it is larger than the sum of its proper divisors (1498411).

3302120021 is a wasteful number, since it uses less digits than its factorization.

3302120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498410.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3302120021 is about 57464.0759170458. The cubic root of 3302120021 is about 1489.1243027899.

Adding to 3302120021 its reverse (1200212033), we get a palindrome (4502332054).

The spelling of 3302120021 in words is "three billion, three hundred two million, one hundred twenty thousand, twenty-one".