42300111221 has 4 divisors (see below), whose sum is σ = 42301122444. Its totient is φ = 42299100000.

The previous prime is 42300111209. The next prime is 42300111223. The reversal of 42300111221 is 12211100324.

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 9625572100 + 32674539121 = 98110^2 + 180761^2 .

It is a cyclic number.

It is not a de Polignac number, because 42300111221 - 2⁶ = 42300111157 is a prime.

It is a super-2 number, since 2×42300111221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42300111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42300111223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440030 + ... + 527471.

It is an arithmetic number, because the mean of its divisors is an integer number (10575280611).

Almost surely, 2^42300111221 is an apocalyptic number.

It is an amenable number.

42300111221 is a deficient number, since it is larger than the sum of its proper divisors (1011223).

42300111221 is an equidigital number, since it uses as much as digits as its factorization.

42300111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011222.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 42300111221 its reverse (12211100324), we get a palindrome (54511211545).

The spelling of 42300111221 in words is "forty-two billion, three hundred million, one hundred eleven thousand, two hundred twenty-one".