221102201197 has 2 divisors, whose sum is σ = 221102201198. Its totient is φ = 221102201196.

The previous prime is 221102201141. The next prime is 221102201207. The reversal of 221102201197 is 791102201122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210180070116 + 10922131081 = 458454^2 + 104509^2 .

It is a cyclic number.

It is not a de Polignac number, because 221102201197 - 2¹⁵ = 221102168429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221102201497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110551100598 + 110551100599.

It is an arithmetic number, because the mean of its divisors is an integer number (110551100599).

Almost surely, 2^221102201197 is an apocalyptic number.

It is an amenable number.

221102201197 is a deficient number, since it is larger than the sum of its proper divisors (1).

221102201197 is an equidigital number, since it uses as much as digits as its factorization.

221102201197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 221102201197 in words is "two hundred twenty-one billion, one hundred two million, two hundred one thousand, one hundred ninety-seven".