221001221210983 has 2 divisors, whose sum is σ = 221001221210984. Its totient is φ = 221001221210982.

The previous prime is 221001221210981. The next prime is 221001221211007. The reversal of 221001221210983 is 389012122100122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221001221210983 - 2¹ = 221001221210981 is a prime.

Together with 221001221210981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221001221210981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110500610605491 + 110500610605492.

It is an arithmetic number, because the mean of its divisors is an integer number (110500610605492).

Almost surely, 2^{221001221210983} is an apocalyptic number.

221001221210983 is a deficient number, since it is larger than the sum of its proper divisors (1).

221001221210983 is an equidigital number, since it uses as much as digits as its factorization.

221001221210983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 221001221210983 in words is "two hundred twenty-one trillion, one billion, two hundred twenty-one million, two hundred ten thousand, nine hundred eighty-three".