113441221221 has 16 divisors (see below), whose sum is σ = 165674808000. Its totient is φ = 68724363008.

The previous prime is 113441221169. The next prime is 113441221259. The reversal of 113441221221 is 122122144311.

It is a cyclic number.

It is not a de Polignac number, because 113441221221 - 2¹⁰ = 113441220197 is a prime.

It is a super-2 number, since 2×113441221221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113441221191 and 113441221200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113441221921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38349171 + ... + 38352128.

It is an arithmetic number, because the mean of its divisors is an integer number (10354675500).

Almost surely, 2^113441221221 is an apocalyptic number.

It is an amenable number.

113441221221 is a deficient number, since it is larger than the sum of its proper divisors (52233586779).

113441221221 is a wasteful number, since it uses less digits than its factorization.

113441221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76701348.

The product of its digits is 768, while the sum is 24.

Adding to 113441221221 its reverse (122122144311), we get a palindrome (235563365532).

The spelling of 113441221221 in words is "one hundred thirteen billion, four hundred forty-one million, two hundred twenty-one thousand, two hundred twenty-one".