22022111211021 has 12 divisors (see below), whose sum is σ = 31809784037148. Its totient is φ = 14681376161664.

The previous prime is 22022111210989. The next prime is 22022111211031. The reversal of 22022111211021 is 12011211122022.

22022111211021 is a `hidden beast` number, since 220 + 2 + 211 + 1 + 211 + 0 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9070101978921 + 12952009232100 = 3011661^2 + 3598890^2 .

It is not a de Polignac number, because 22022111211021 - 2⁵ = 22022111210989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22022111210985 and 22022111211003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022111211031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2338741 + ... + 7036613.

It is an arithmetic number, because the mean of its divisors is an integer number (2650815336429).

Almost surely, 2^{22022111211021} is an apocalyptic number.

It is an amenable number.

22022111211021 is a deficient number, since it is larger than the sum of its proper divisors (9787672826127).

22022111211021 is a wasteful number, since it uses less digits than its factorization.

22022111211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218732 (or 5218729 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22022111211021 its reverse (12011211122022), we get a palindrome (34033322333043).

The spelling of 22022111211021 in words is "twenty-two trillion, twenty-two billion, one hundred eleven million, two hundred eleven thousand, twenty-one".