222041323221491 has 2 divisors, whose sum is σ = 222041323221492. Its totient is φ = 222041323221490.

The previous prime is 222041323221379. The next prime is 222041323221511. The reversal of 222041323221491 is 194122323140222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222041323221491 is a prime.

It is not a weakly prime, because it can be changed into another prime (222041323221791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111020661610745 + 111020661610746.

It is an arithmetic number, because the mean of its divisors is an integer number (111020661610746).

Almost surely, 2^{222041323221491} is an apocalyptic number.

222041323221491 is a deficient number, since it is larger than the sum of its proper divisors (1).

222041323221491 is an equidigital number, since it uses as much as digits as its factorization.

222041323221491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 222041323221491 in words is "two hundred twenty-two trillion, forty-one billion, three hundred twenty-three million, two hundred twenty-one thousand, four hundred ninety-one".