54221222140 has 12 divisors (see below), whose sum is σ = 113864566536. Its totient is φ = 21688488848.

The previous prime is 54221222117. The next prime is 54221222141. The reversal of 54221222140 is 4122212245.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54221222141) 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, 1355530534 + ... + 1355530573.

It is an arithmetic number, because the mean of its divisors is an integer number (9488713878).

Almost surely, 2^54221222140 is an apocalyptic number.

It is an amenable number.

54221222140 is an abundant number, since it is smaller than the sum of its proper divisors (59643344396).

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

54221222140 is a wasteful number, since it uses less digits than its factorization.

54221222140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711061116 (or 2711061114 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 54221222140 its reverse (4122212245), we get a palindrome (58343434385).

The spelling of 54221222140 in words is "fifty-four billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred forty".