2721701121 has 8 divisors (see below), whose sum is σ = 3678646560. Its totient is φ = 1789611552.

The previous prime is 2721701119. The next prime is 2721701123. The reversal of 2721701121 is 1211071272.

It is an interprime number because it is at equal distance from previous prime (2721701119) and next prime (2721701123).

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

It is not a de Polignac number, because 2721701121 - 2¹ = 2721701119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2721701091 and 2721701100.

It is not an unprimeable number, because it can be changed into a prime (2721701123) 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, 6213711 + ... + 6214148.

It is an arithmetic number, because the mean of its divisors is an integer number (459830820).

Almost surely, 2^2721701121 is an apocalyptic number.

It is an amenable number.

2721701121 is a deficient number, since it is larger than the sum of its proper divisors (956945439).

2721701121 is a wasteful number, since it uses less digits than its factorization.

2721701121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12427935.

The product of its (nonzero) digits is 392, while the sum is 24.

The square root of 2721701121 is about 52169.9254456052. The cubic root of 2721701121 is about 1396.1973543381.

Adding to 2721701121 its reverse (1211071272), we get a palindrome (3932772393).

The spelling of 2721701121 in words is "two billion, seven hundred twenty-one million, seven hundred one thousand, one hundred twenty-one".