221030203021039 has 2 divisors, whose sum is σ = 221030203021040. Its totient is φ = 221030203021038.

The previous prime is 221030203021027. The next prime is 221030203021063. The reversal of 221030203021039 is 930120302030122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221030203021039 - 2⁹ = 221030203020527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221030203020998 and 221030203021016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221030203021079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110515101510519 + 110515101510520.

It is an arithmetic number, because the mean of its divisors is an integer number (110515101510520).

Almost surely, 2^{221030203021039} is an apocalyptic number.

221030203021039 is a deficient number, since it is larger than the sum of its proper divisors (1).

221030203021039 is an equidigital number, since it uses as much as digits as its factorization.

221030203021039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 221030203021039 in words is "two hundred twenty-one trillion, thirty billion, two hundred three million, twenty-one thousand, thirty-nine".