541111220 has 48 divisors (see below), whose sum is σ = 1233163008. Its totient is φ = 198257280.

The previous prime is 541111217. The next prime is 541111267. The reversal of 541111220 is 22111145.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26117 + ... + 42003.

It is an arithmetic number, because the mean of its divisors is an integer number (25690896).

Almost surely, 2^541111220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 541111220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616581504).

541111220 is an abundant number, since it is smaller than the sum of its proper divisors (692051788).

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

541111220 is a wasteful number, since it uses less digits than its factorization.

541111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16040 (or 16038 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 541111220 is about 23261.7974369996. The cubic root of 541111220 is about 814.8834791451.

Adding to 541111220 its reverse (22111145), we get a palindrome (563222365).

The spelling of 541111220 in words is "five hundred forty-one million, one hundred eleven thousand, two hundred twenty".