2201881 has 4 divisors (see below), whose sum is σ = 2402064. Its totient is φ = 2001700.

The previous prime is 2201839. The next prime is 2201897. The reversal of 2201881 is 1881022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2201881 - 2¹¹ = 2199833 is a prime.

It is a super-2 number, since 2×2201881² = 9696559876322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201281) 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, 100075 + ... + 100096.

It is an arithmetic number, because the mean of its divisors is an integer number (600516).

2^2201881 is an apocalyptic number.

It is an amenable number.

2201881 is a deficient number, since it is larger than the sum of its proper divisors (200183).

2201881 is a wasteful number, since it uses less digits than its factorization.

2201881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200182.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 2201881 is about 1483.8736469120. The cubic root of 2201881 is about 130.0962009823.

The spelling of 2201881 in words is "two million, two hundred one thousand, eight hundred eighty-one".