54355221212 has 24 divisors (see below), whose sum is σ = 95499956160. Its totient is φ = 27069577920.

The previous prime is 54355221209. The next prime is 54355221227. The reversal of 54355221212 is 21212255345.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6531278 + ... + 6539594.

It is an arithmetic number, because the mean of its divisors is an integer number (3979164840).

Almost surely, 2^54355221212 is an apocalyptic number.

It is an amenable number.

54355221212 is a deficient number, since it is larger than the sum of its proper divisors (41144734948).

54355221212 is a wasteful number, since it uses less digits than its factorization.

54355221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14621 (or 14619 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

Adding to 54355221212 its reverse (21212255345), we get a palindrome (75567476557).

The spelling of 54355221212 in words is "fifty-four billion, three hundred fifty-five million, two hundred twenty-one thousand, two hundred twelve".