11021112111021 has 128 divisors (see below), whose sum is σ = 16920788336640. Its totient is φ = 6337800806400.

The previous prime is 11021112110999. The next prime is 11021112111043. The reversal of 11021112111021 is 12011121112011.

It is an interprime number because it is at equal distance from previous prime (11021112110999) and next prime (11021112111043).

It is not a de Polignac number, because 11021112111021 - 2¹¹ = 11021112108973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021112111091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1625289651 + ... + 1625296431.

It is an arithmetic number, because the mean of its divisors is an integer number (132193658880).

Almost surely, 2^{11021112111021} is an apocalyptic number.

It is an amenable number.

11021112111021 is a deficient number, since it is larger than the sum of its proper divisors (5899676225619).

11021112111021 is a wasteful number, since it uses less digits than its factorization.

11021112111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7275.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11021112111021 its reverse (12011121112011), we get a palindrome (23032233223032).

The spelling of 11021112111021 in words is "eleven trillion, twenty-one billion, one hundred twelve million, one hundred eleven thousand, twenty-one".