2721220333 has 8 divisors (see below), whose sum is σ = 2967641600. Its totient is φ = 2480098608.

The previous prime is 2721220319. The next prime is 2721220339. The reversal of 2721220333 is 3330221272.

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

It is not a de Polignac number, because 2721220333 - 2²⁵ = 2687665901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2721220298 and 2721220307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721220339) 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, 1323813 + ... + 1325866.

It is an arithmetic number, because the mean of its divisors is an integer number (370955200).

Almost surely, 2^2721220333 is an apocalyptic number.

It is an amenable number.

2721220333 is a deficient number, since it is larger than the sum of its proper divisors (246421267).

2721220333 is a wasteful number, since it uses less digits than its factorization.

2721220333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649771.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 2721220333 is about 52165.3173382469. The cubic root of 2721220333 is about 1396.1151368284.

The spelling of 2721220333 in words is "two billion, seven hundred twenty-one million, two hundred twenty thousand, three hundred thirty-three".