221040300223 has 4 divisors (see below), whose sum is σ = 221115512520. Its totient is φ = 220965087928.

The previous prime is 221040300191. The next prime is 221040300233. The reversal of 221040300223 is 322003040122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322003040122 = 2 ⋅161001520061.

It is a cyclic number.

It is not a de Polignac number, because 221040300223 - 2⁵ = 221040300191 is a prime.

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 221040300223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221040300233) 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, 37601740 + ... + 37607617.

It is an arithmetic number, because the mean of its divisors is an integer number (55278878130).

Almost surely, 2^221040300223 is an apocalyptic number.

221040300223 is a deficient number, since it is larger than the sum of its proper divisors (75212297).

221040300223 is an equidigital number, since it uses as much as digits as its factorization.

221040300223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75212296.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 221040300223 its reverse (322003040122), we get a palindrome (543043340345).

The spelling of 221040300223 in words is "two hundred twenty-one billion, forty million, three hundred thousand, two hundred twenty-three".