54223521212 has 12 divisors (see below), whose sum is σ = 108447042480. Its totient is φ = 23238651936.

The previous prime is 54223521211. The next prime is 54223521221. The reversal of 54223521212 is 21212532245.

It is a happy number.

54223521212 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54223521211) 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, 968277137 + ... + 968277192.

It is an arithmetic number, because the mean of its divisors is an integer number (9037253540).

Almost surely, 2^54223521212 is an apocalyptic number.

It is an amenable number.

54223521212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

54223521212 is a wasteful number, since it uses less digits than its factorization.

54223521212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936554340 (or 1936554338 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The spelling of 54223521212 in words is "fifty-four billion, two hundred twenty-three million, five hundred twenty-one thousand, two hundred twelve".