2211201109 has 8 divisors (see below), whose sum is σ = 2383805592. Its totient is φ = 2038955520.

The previous prime is 2211201103. The next prime is 2211201121. The reversal of 2211201109 is 9011021122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 55920484 + 2155280625 = 7478^2 + 46425^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2211201109 - 2⁹ = 2211200597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211201103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76852 + ... + 101629.

It is an arithmetic number, because the mean of its divisors is an integer number (297975699).

Almost surely, 2^2211201109 is an apocalyptic number.

It is an amenable number.

2211201109 is a deficient number, since it is larger than the sum of its proper divisors (172604483).

2211201109 is a wasteful number, since it uses less digits than its factorization.

2211201109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179447.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 2211201109 is about 47023.4102229942. The cubic root of 2211201109 is about 1302.7949941608.

The spelling of 2211201109 in words is "two billion, two hundred eleven million, two hundred one thousand, one hundred nine".