2201081 has 4 divisors (see below), whose sum is σ = 2212452. Its totient is φ = 2189712.

The previous prime is 2201051. The next prime is 2201083. The reversal of 2201081 is 1801022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1801022 = 2 ⋅900511.

It can be written as a sum of positive squares in 2 ways, for example, as 1731856 + 469225 = 1316^2 + 685^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201081 - 2¹⁴ = 2184697 is a prime.

It is a super-2 number, since 2×2201081² = 9689515137122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201083) 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, 5390 + ... + 5783.

It is an arithmetic number, because the mean of its divisors is an integer number (553113).

2^2201081 is an apocalyptic number.

It is an amenable number.

2201081 is a deficient number, since it is larger than the sum of its proper divisors (11371).

2201081 is a wasteful number, since it uses less digits than its factorization.

2201081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11370.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2201081 is about 1483.6040576919. The cubic root of 2201081 is about 130.0804433085.

The spelling of 2201081 in words is "two million, two hundred one thousand, eighty-one".