221102220202349 has 2 divisors, whose sum is σ = 221102220202350. Its totient is φ = 221102220202348.

The previous prime is 221102220202181. The next prime is 221102220202459. The reversal of 221102220202349 is 943202022201122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165403134637225 + 55699085565124 = 12860915^2 + 7463182^2 .

It is a cyclic number.

It is not a de Polignac number, because 221102220202349 - 2⁴⁴ = 203510034157933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221102220232349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110551110101174 + 110551110101175.

It is an arithmetic number, because the mean of its divisors is an integer number (110551110101175).

Almost surely, 2^{221102220202349} is an apocalyptic number.

It is an amenable number.

221102220202349 is a deficient number, since it is larger than the sum of its proper divisors (1).

221102220202349 is an equidigital number, since it uses as much as digits as its factorization.

221102220202349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 221102220202349 in words is "two hundred twenty-one trillion, one hundred two billion, two hundred twenty million, two hundred two thousand, three hundred forty-nine".