228000121481 has 4 divisors (see below), whose sum is σ = 248727405264. Its totient is φ = 207272837700.

The previous prime is 228000121471. The next prime is 228000121519. The reversal of 228000121481 is 184121000822.

228000121481 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, 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 228000121481 - 2¹⁰ = 228000120457 is a prime.

It is a super-2 number, since 2×228000121481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228000121471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10363641875 + ... + 10363641896.

It is an arithmetic number, because the mean of its divisors is an integer number (62181851316).

Almost surely, 2^228000121481 is an apocalyptic number.

It is an amenable number.

228000121481 is a deficient number, since it is larger than the sum of its proper divisors (20727283783).

228000121481 is a wasteful number, since it uses less digits than its factorization.

228000121481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20727283782.

The product of its (nonzero) digits is 2048, while the sum is 29.

The spelling of 228000121481 in words is "two hundred twenty-eight billion, one hundred twenty-one thousand, four hundred eighty-one".