221442304033 has 16 divisors (see below), whose sum is σ = 233444780800. Its totient is φ = 209474864640.

The previous prime is 221442304021. The next prime is 221442304037. The reversal of 221442304033 is 330403244122.

It is a cyclic number.

It is not a de Polignac number, because 221442304033 - 2¹⁷ = 221442172961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221442303992 and 221442304010.

It is not an unprimeable number, because it can be changed into a prime (221442304037) 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, 53628913 + ... + 53633041.

It is an arithmetic number, because the mean of its divisors is an integer number (14590298800).

Almost surely, 2^221442304033 is an apocalyptic number.

It is an amenable number.

221442304033 is a deficient number, since it is larger than the sum of its proper divisors (12002476767).

221442304033 is a wasteful number, since it uses less digits than its factorization.

221442304033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7672.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 221442304033 its reverse (330403244122), we get a palindrome (551845548155).

The spelling of 221442304033 in words is "two hundred twenty-one billion, four hundred forty-two million, three hundred four thousand, thirty-three".