654224321121 has 32 divisors (see below), whose sum is σ = 1031921130240. Its totient is φ = 360730304256.

The previous prime is 654224321117. The next prime is 654224321143. The reversal of 654224321121 is 121123422456.

It is not a de Polignac number, because 654224321121 - 2² = 654224321117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (654224321021) 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 31 ways as a sum of consecutive naturals, for example, 668815 + ... + 1325051.

It is an arithmetic number, because the mean of its divisors is an integer number (32247535320).

Almost surely, 2^654224321121 is an apocalyptic number.

It is an amenable number.

654224321121 is a deficient number, since it is larger than the sum of its proper divisors (377696809119).

654224321121 is a wasteful number, since it uses less digits than its factorization.

654224321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657913.

The product of its digits is 23040, while the sum is 33.

Adding to 654224321121 its reverse (121123422456), we get a palindrome (775347743577).

The spelling of 654224321121 in words is "six hundred fifty-four billion, two hundred twenty-four million, three hundred twenty-one thousand, one hundred twenty-one".