221312213039 has 2 divisors, whose sum is σ = 221312213040. Its totient is φ = 221312213038.

The previous prime is 221312213027. The next prime is 221312213147. The reversal of 221312213039 is 930312213122.

221312213039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221312213039 - 2¹⁶ = 221312147503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221312203039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110656106519 + 110656106520.

It is an arithmetic number, because the mean of its divisors is an integer number (110656106520).

Almost surely, 2^221312213039 is an apocalyptic number.

221312213039 is a deficient number, since it is larger than the sum of its proper divisors (1).

221312213039 is an equidigital number, since it uses as much as digits as its factorization.

221312213039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 221312213039 in words is "two hundred twenty-one billion, three hundred twelve million, two hundred thirteen thousand, thirty-nine".