2228515160881 has 4 divisors (see below), whose sum is σ = 2228632984692. Its totient is φ = 2228397337072.

The previous prime is 2228515160873. The next prime is 2228515160923. The reversal of 2228515160881 is 1880615158222.

It is a happy number.

2228515160881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 713932053025 + 1514583107856 = 844945^2 + 1230684^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228515160881 - 2³ = 2228515160873 is a prime.

It is a super-2 number, since 2×2228515160881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2228515160981) 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, 58883530 + ... + 58921363.

It is an arithmetic number, because the mean of its divisors is an integer number (557158246173).

Almost surely, 2^{2228515160881} is an apocalyptic number.

It is an amenable number.

2228515160881 is a deficient number, since it is larger than the sum of its proper divisors (117823811).

2228515160881 is a wasteful number, since it uses less digits than its factorization.

2228515160881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117823810.

The product of its (nonzero) digits is 614400, while the sum is 49.

The spelling of 2228515160881 in words is "two trillion, two hundred twenty-eight billion, five hundred fifteen million, one hundred sixty thousand, eight hundred eighty-one".