11022221111021 has 32 divisors (see below), whose sum is σ = 11990511129600. Its totient is φ = 10106199417600.

The previous prime is 11022221110939. The next prime is 11022221111063. The reversal of 11022221111021 is 12011112222011.

It is a cyclic number.

It is not a de Polignac number, because 11022221111021 - 2¹⁴ = 11022221094637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022221111621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10582076 + ... + 11576906.

It is an arithmetic number, because the mean of its divisors is an integer number (374703472800).

Almost surely, 2^{11022221111021} is an apocalyptic number.

It is an amenable number.

11022221111021 is a deficient number, since it is larger than the sum of its proper divisors (968290018579).

11022221111021 is a wasteful number, since it uses less digits than its factorization.

11022221111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995117.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11022221111021 its reverse (12011112222011), we get a palindrome (23033333333032).

The spelling of 11022221111021 in words is "eleven trillion, twenty-two billion, two hundred twenty-one million, one hundred eleven thousand, twenty-one".