2231412281 has 4 divisors (see below), whose sum is σ = 2550185472. Its totient is φ = 1912639092.

The previous prime is 2231412251. The next prime is 2231412283. The reversal of 2231412281 is 1822141322.

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 not a de Polignac number, because 2231412281 - 2⁶ = 2231412217 is a prime.

It is a super-3 number, since 3×2231412281³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231412281.

It is not an unprimeable number, because it can be changed into a prime (2231412283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159386585 + ... + 159386598.

It is an arithmetic number, because the mean of its divisors is an integer number (637546368).

Almost surely, 2^2231412281 is an apocalyptic number.

It is an amenable number.

2231412281 is a deficient number, since it is larger than the sum of its proper divisors (318773191).

2231412281 is an equidigital number, since it uses as much as digits as its factorization.

2231412281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318773190.

The product of its digits is 1536, while the sum is 26.

The square root of 2231412281 is about 47237.8268022567. The cubic root of 2231412281 is about 1306.7522994677.

The spelling of 2231412281 in words is "two billion, two hundred thirty-one million, four hundred twelve thousand, two hundred eighty-one".