2201220992909 has 2 divisors, whose sum is σ = 2201220992910. Its totient is φ = 2201220992908.

The previous prime is 2201220992897. The next prime is 2201220992939. The reversal of 2201220992909 is 9092990221022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1476929784100 + 724291208809 = 1215290^2 + 851053^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201220992909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201220992939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100610496454 + 1100610496455.

It is an arithmetic number, because the mean of its divisors is an integer number (1100610496455).

Almost surely, 2^{2201220992909} is an apocalyptic number.

It is an amenable number.

2201220992909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201220992909 is an equidigital number, since it uses as much as digits as its factorization.

2201220992909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 2201220992909 in words is "two trillion, two hundred one billion, two hundred twenty million, nine hundred ninety-two thousand, nine hundred nine".