201122101709 has 2 divisors, whose sum is σ = 201122101710. Its totient is φ = 201122101708.

The previous prime is 201122101681. The next prime is 201122101711. The reversal of 201122101709 is 907101221102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152014212100 + 49107889609 = 389890^2 + 221603^2 .

It is a cyclic number.

It is not a de Polignac number, because 201122101709 - 2¹² = 201122097613 is a prime.

Together with 201122101711, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201122101769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561050854 + 100561050855.

It is an arithmetic number, because the mean of its divisors is an integer number (100561050855).

Almost surely, 2^201122101709 is an apocalyptic number.

It is an amenable number.

201122101709 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122101709 is an equidigital number, since it uses as much as digits as its factorization.

201122101709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The spelling of 201122101709 in words is "two hundred one billion, one hundred twenty-two million, one hundred one thousand, seven hundred nine".