57218014220 has 24 divisors (see below), whose sum is σ = 120162384384. Its totient is φ = 22886338176.

The previous prime is 57218014211. The next prime is 57218014223. The reversal of 57218014220 is 2241081275.

It is not an unprimeable number, because it can be changed into a prime (57218014223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875189 + ... + 938291.

It is an arithmetic number, because the mean of its divisors is an integer number (5006766016).

Almost surely, 2^57218014220 is an apocalyptic number.

It is an amenable number.

57218014220 is an abundant number, since it is smaller than the sum of its proper divisors (62944370164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57218014220 is a wasteful number, since it uses less digits than its factorization.

57218014220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108449 (or 108447 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

Adding to 57218014220 its reverse (2241081275), we get a palindrome (59459095495).

The spelling of 57218014220 in words is "fifty-seven billion, two hundred eighteen million, fourteen thousand, two hundred twenty".