54221022 has 64 divisors (see below), whose sum is σ = 129888000. Its totient is φ = 16710624.

The previous prime is 54220997. The next prime is 54221029. The reversal of 54221022 is 22012245.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 54220986 and 54221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54221029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43504 + ... + 44732.

It is an arithmetic number, because the mean of its divisors is an integer number (2029500).

Almost surely, 2^54221022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54221022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64944000).

54221022 is an abundant number, since it is smaller than the sum of its proper divisors (75666978).

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

54221022 is a wasteful number, since it uses less digits than its factorization.

54221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 54221022 is about 7363.4925137464. The cubic root of 54221022 is about 378.4912986825.

Adding to 54221022 its reverse (22012245), we get a palindrome (76233267).

The spelling of 54221022 in words is "fifty-four million, two hundred twenty-one thousand, twenty-two".