221441024113 has 4 divisors (see below), whose sum is σ = 221462122228. Its totient is φ = 221419926000.

The previous prime is 221441024039. The next prime is 221441024141. The reversal of 221441024113 is 311420144122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73979648064 + 147461376049 = 271992^2 + 384007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221441024113 is a prime.

It is a super-2 number, since 2×221441024113² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221441064113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10533306 + ... + 10554307.

It is an arithmetic number, because the mean of its divisors is an integer number (55365530557).

Almost surely, 2^221441024113 is an apocalyptic number.

It is an amenable number.

221441024113 is a deficient number, since it is larger than the sum of its proper divisors (21098115).

221441024113 is a wasteful number, since it uses less digits than its factorization.

221441024113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21098114.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 221441024113 its reverse (311420144122), we get a palindrome (532861168235).

The spelling of 221441024113 in words is "two hundred twenty-one billion, four hundred forty-one million, twenty-four thousand, one hundred thirteen".