11122221011009 has 16 divisors (see below), whose sum is σ = 11837920944960. Its totient is φ = 10419807240000.

The previous prime is 11122221010997. The next prime is 11122221011023. The reversal of 11122221011009 is 90011012222111.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11122221011009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11122221011509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1954247 + ... + 5105244.

It is an arithmetic number, because the mean of its divisors is an integer number (739870059060).

Almost surely, 2^{11122221011009} is an apocalyptic number.

11122221011009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11122221011009 is a deficient number, since it is larger than the sum of its proper divisors (715699933951).

11122221011009 is a wasteful number, since it uses less digits than its factorization.

11122221011009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060432.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 11122221011009 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-one million, eleven thousand, nine".