11011221020009 has 8 divisors (see below), whose sum is σ = 12584339786688. Its totient is φ = 9438124051440.

The previous prime is 11011221019969. The next prime is 11011221020021. The reversal of 11011221020009 is 90002012211011.

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

It is not a de Polignac number, because 11011221020009 - 2²⁴ = 11011204242793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11011221020099) 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, 4352342 + ... + 6400415.

It is an arithmetic number, because the mean of its divisors is an integer number (1573042473336).

Almost surely, 2^{11011221020009} is an apocalyptic number.

It is an amenable number.

11011221020009 is a deficient number, since it is larger than the sum of its proper divisors (1573118766679).

11011221020009 is a wasteful number, since it uses less digits than its factorization.

11011221020009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10899055.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 11011221020009 in words is "eleven trillion, eleven billion, two hundred twenty-one million, twenty thousand, nine".