11021221120001 has 16 divisors (see below), whose sum is σ = 11542679326464. Its totient is φ = 10512817628544.

The previous prime is 11021221119991. The next prime is 11021221120027. The reversal of 11021221120001 is 10002112212011.

It is a cyclic number.

It is not a de Polignac number, because 11021221120001 - 2²⁶ = 11021154011137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021221120031) 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, 5042870 + ... + 6890063.

It is an arithmetic number, because the mean of its divisors is an integer number (721417457904).

Almost surely, 2^{11021221120001} is an apocalyptic number.

It is an amenable number.

11021221120001 is a deficient number, since it is larger than the sum of its proper divisors (521458206463).

11021221120001 is a wasteful number, since it uses less digits than its factorization.

11021221120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11933480.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11021221120001 its reverse (10002112212011), we get a palindrome (21023333332012).

The spelling of 11021221120001 in words is "eleven trillion, twenty-one billion, two hundred twenty-one million, one hundred twenty thousand, one".