540221000000 has 392 divisors, whose sum is σ = 1485642858528. Its totient is φ = 193248000000.

The previous prime is 540220999999. The next prime is 540221000003. The reversal of 540221000000 is 122045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540221000003) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 736999634 + ... + 737000366.

Almost surely, 2^540221000000 is an apocalyptic number.

540221000000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 540221000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742821429264).

540221000000 is an abundant number, since it is smaller than the sum of its proper divisors (945421858528).

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

540221000000 is an frugal number, since it uses more digits than its factorization.

540221000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

Adding to 540221000000 its reverse (122045), we get a palindrome (540221122045).

The spelling of 540221000000 in words is "five hundred forty billion, two hundred twenty-one million", and thus it is an aban number.