221442304023 has 6 divisors (see below), whose sum is σ = 319861105824. Its totient is φ = 147628202676.

The previous prime is 221442304021. The next prime is 221442304037. The reversal of 221442304023 is 320403244122.

221442304023 is a `hidden beast` number, since 2 + 21 + 4 + 4 + 230 + 402 + 3 = 666.

It is not a de Polignac number, because 221442304023 - 2¹ = 221442304021 is a prime.

It is a super-2 number, since 2×221442304023² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221442304021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12302350215 + ... + 12302350232.

It is an arithmetic number, because the mean of its divisors is an integer number (53310184304).

Almost surely, 2^221442304023 is an apocalyptic number.

221442304023 is a deficient number, since it is larger than the sum of its proper divisors (98418801801).

221442304023 is a wasteful number, since it uses less digits than its factorization.

221442304023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24604700453 (or 24604700450 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 221442304023 its reverse (320403244122), we get a palindrome (541845548145).

The spelling of 221442304023 in words is "two hundred twenty-one billion, four hundred forty-two million, three hundred four thousand, twenty-three".