2721201 has 8 divisors (see below), whose sum is σ = 4146624. Its totient is φ = 1554960.

The previous prime is 2721197. The next prime is 2721223. The reversal of 2721201 is 1021272.

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

It is not a de Polignac number, because 2721201 - 2² = 2721197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2721401) 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, 64770 + ... + 64811.

It is an arithmetic number, because the mean of its divisors is an integer number (518328).

2^2721201 is an apocalyptic number.

2721201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2721201 is a deficient number, since it is larger than the sum of its proper divisors (1425423).

2721201 is a wasteful number, since it uses less digits than its factorization.

2721201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129591.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 2721201 is about 1649.6063166707. The cubic root of 2721201 is about 139.6111830572.

Adding to 2721201 its reverse (1021272), we get a palindrome (3742473).

The spelling of 2721201 in words is "two million, seven hundred twenty-one thousand, two hundred one".