221103553399 has 2 divisors, whose sum is σ = 221103553400. Its totient is φ = 221103553398.

The previous prime is 221103553397. The next prime is 221103553453. The reversal of 221103553399 is 993355301122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221103553399 - 2¹ = 221103553397 is a prime.

Together with 221103553397, 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 (221103553397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110551776699 + 110551776700.

It is an arithmetic number, because the mean of its divisors is an integer number (110551776700).

Almost surely, 2^221103553399 is an apocalyptic number.

221103553399 is a deficient number, since it is larger than the sum of its proper divisors (1).

221103553399 is an equidigital number, since it uses as much as digits as its factorization.

221103553399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 218700, while the sum is 43.

The spelling of 221103553399 in words is "two hundred twenty-one billion, one hundred three million, five hundred fifty-three thousand, three hundred ninety-nine".