221113420331113 has 4 divisors (see below), whose sum is σ = 228246111309568. Its totient is φ = 213980729352660.

The previous prime is 221113420331071. The next prime is 221113420331131. The reversal of 221113420331113 is 311133024311122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221113420331113 is a prime.

It is a super-2 number, since 2×221113420331113² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221113420331513) 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, 3566345489181 + ... + 3566345489242.

It is an arithmetic number, because the mean of its divisors is an integer number (57061527827392).

Almost surely, 2^{221113420331113} is an apocalyptic number.

It is an amenable number.

221113420331113 is a deficient number, since it is larger than the sum of its proper divisors (7132690978455).

221113420331113 is an equidigital number, since it uses as much as digits as its factorization.

221113420331113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132690978454.

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 221113420331113 its reverse (311133024311122), we get a palindrome (532246444642235).

The spelling of 221113420331113 in words is "two hundred twenty-one trillion, one hundred thirteen billion, four hundred twenty million, three hundred thirty-one thousand, one hundred thirteen".