221043023027 has 2 divisors, whose sum is σ = 221043023028. Its totient is φ = 221043023026.

The previous prime is 221043022987. The next prime is 221043023053. The reversal of 221043023027 is 720320340122.

It is a happy number.

It is an a-pointer prime, because the next prime (221043023053) can be obtained adding 221043023027 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221043023027 - 2²² = 221038828723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221043022987 and 221043023005.

It is not a weakly prime, because it can be changed into another prime (221043023077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110521511513 + 110521511514.

It is an arithmetic number, because the mean of its divisors is an integer number (110521511514).

Almost surely, 2^221043023027 is an apocalyptic number.

221043023027 is a deficient number, since it is larger than the sum of its proper divisors (1).

221043023027 is an equidigital number, since it uses as much as digits as its factorization.

221043023027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

Adding to 221043023027 its reverse (720320340122), we get a palindrome (941363363149).

The spelling of 221043023027 in words is "two hundred twenty-one billion, forty-three million, twenty-three thousand, twenty-seven".