11120021111021 has 16 divisors (see below), whose sum is σ = 11380254762240. Its totient is φ = 10862926900800.

The previous prime is 11120021110987. The next prime is 11120021111077. The reversal of 11120021111021 is 12011112002111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11120021111021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11120021110987 and 11120021111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120021111821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10897715 + ... + 11874351.

It is an arithmetic number, because the mean of its divisors is an integer number (711265922640).

Almost surely, 2^{11120021111021} is an apocalyptic number.

It is an amenable number.

11120021111021 is a deficient number, since it is larger than the sum of its proper divisors (260233651219).

11120021111021 is a wasteful number, since it uses less digits than its factorization.

11120021111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978244.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11120021111021 its reverse (12011112002111), we get a palindrome (23131133113132).

The spelling of 11120021111021 in words is "eleven trillion, one hundred twenty billion, twenty-one million, one hundred eleven thousand, twenty-one".