113541034522221 has 56 divisors (see below), whose sum is σ = 170398091933496. Its totient is φ = 75620940595200.

The previous prime is 113541034522183. The next prime is 113541034522247. The reversal of 113541034522221 is 122225430145311.

113541034522221 is a `hidden beast` number, since 1 + 1 + 3 + 5 + 4 + 103 + 4 + 522 + 2 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3018075782121 + 110522958740100 = 1737261^2 + 10512990^2 .

It is not a de Polignac number, because 113541034522221 - 2¹⁹ = 113541033997933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113541034502221) 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, 7011727501 + ... + 7011743693.

It is an arithmetic number, because the mean of its divisors is an integer number (3042823070241).

Almost surely, 2^{113541034522221} is an apocalyptic number.

It is an amenable number.

113541034522221 is a deficient number, since it is larger than the sum of its proper divisors (56857057411275).

113541034522221 is an equidigital number, since it uses as much as digits as its factorization.

113541034522221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24905 (or 24890 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 113541034522221 its reverse (122225430145311), we get a palindrome (235766464667532).

The spelling of 113541034522221 in words is "one hundred thirteen trillion, five hundred forty-one billion, thirty-four million, five hundred twenty-two thousand, two hundred twenty-one".