1100020012209 has 12 divisors (see below), whose sum is σ = 1605298392516. Its totient is φ = 725786399232.

The previous prime is 1100020012199. The next prime is 1100020012249. The reversal of 1100020012209 is 9022100200011.

It can be written as a sum of positive squares in 2 ways, for example, as 513766400625 + 586253611584 = 716775^2 + 765672^2 .

It is not a de Polignac number, because 1100020012209 - 2⁵ = 1100020012177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100020012191 and 1100020012200.

It is not an unprimeable number, because it can be changed into a prime (1100020012249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 630022044 + ... + 630023789.

It is an arithmetic number, because the mean of its divisors is an integer number (133774866043).

Almost surely, 2^{1100020012209} is an apocalyptic number.

It is an amenable number.

1100020012209 is a deficient number, since it is larger than the sum of its proper divisors (505278380307).

1100020012209 is a wasteful number, since it uses less digits than its factorization.

1100020012209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260045936 (or 1260045933 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 1100020012209 in words is "one trillion, one hundred billion, twenty million, twelve thousand, two hundred nine".