2725701221 has 8 divisors (see below), whose sum is σ = 2930206080. Its totient is φ = 2527301088.

The previous prime is 2725701211. The next prime is 2725701233. The reversal of 2725701221 is 1221075272.

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

It is a cyclic number.

It is not a de Polignac number, because 2725701221 - 2¹⁸ = 2725439077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2725701211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1525256 + ... + 1527041.

It is an arithmetic number, because the mean of its divisors is an integer number (366275760).

Almost surely, 2^2725701221 is an apocalyptic number.

It is an amenable number.

2725701221 is a deficient number, since it is larger than the sum of its proper divisors (204504859).

2725701221 is a wasteful number, since it uses less digits than its factorization.

2725701221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052363.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 2725701221 is about 52208.2485915779. The cubic root of 2725701221 is about 1396.8810193149.

Adding to 2725701221 its reverse (1221075272), we get a palindrome (3946776493).

The spelling of 2725701221 in words is "two billion, seven hundred twenty-five million, seven hundred one thousand, two hundred twenty-one".