2281133121 has 16 divisors (see below), whose sum is σ = 3090864384. Its totient is φ = 1496137104.

The previous prime is 2281133119. The next prime is 2281133161. The reversal of 2281133121 is 1213311822.

2281133121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2281133121 - 2¹ = 2281133119 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2281133091 and 2281133100.

It is not an unprimeable number, because it can be changed into a prime (2281133161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159366 + ... + 173088.

It is an arithmetic number, because the mean of its divisors is an integer number (193179024).

Almost surely, 2^2281133121 is an apocalyptic number.

It is an amenable number.

2281133121 is a deficient number, since it is larger than the sum of its proper divisors (809731263).

2281133121 is a wasteful number, since it uses less digits than its factorization.

2281133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14620.

The product of its digits is 576, while the sum is 24.

The square root of 2281133121 is about 47761.2093753917. The cubic root of 2281133121 is about 1316.3868747434.

Adding to 2281133121 its reverse (1213311822), we get a palindrome (3494444943).

The spelling of 2281133121 in words is "two billion, two hundred eighty-one million, one hundred thirty-three thousand, one hundred twenty-one".