540221002101 has 24 divisors (see below), whose sum is σ = 879698729280. Its totient is φ = 327406665960.

The previous prime is 540221002091. The next prime is 540221002163. The reversal of 540221002101 is 101200122045.

540221002101 is a `hidden beast` number, since 540 + 2 + 2 + 100 + 21 + 0 + 1 = 666.

It is not a de Polignac number, because 540221002101 - 2¹⁵ = 540220969333 is a prime.

It is a super-2 number, since 2×540221002101² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540221000101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82675185 + ... + 82681718.

It is an arithmetic number, because the mean of its divisors is an integer number (36654113720).

Almost surely, 2^540221002101 is an apocalyptic number.

It is an amenable number.

540221002101 is a deficient number, since it is larger than the sum of its proper divisors (339477727179).

540221002101 is a wasteful number, since it uses less digits than its factorization.

540221002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165356934 (or 165356917 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 540221002101 its reverse (101200122045), we get a palindrome (641421124146).

The spelling of 540221002101 in words is "five hundred forty billion, two hundred twenty-one million, two thousand, one hundred one".