22112021220111 has 16 divisors (see below), whose sum is σ = 32759055678720. Its totient is φ = 14741119904760.

The previous prime is 22112021220049. The next prime is 22112021220137. The reversal of 22112021220111 is 11102212021122.

22112021220111 is a `hidden beast` number, since 221 + 1 + 20 + 212 + 201 + 11 = 666.

It is not a de Polignac number, because 22112021220111 - 2¹⁰ = 22112021219087 is a prime.

It is a super-2 number, since 2×22112021220111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112021220151) 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, 4530985 + ... + 8046978.

It is an arithmetic number, because the mean of its divisors is an integer number (2047440979920).

Almost surely, 2^{22112021220111} is an apocalyptic number.

22112021220111 is a deficient number, since it is larger than the sum of its proper divisors (10647034458609).

22112021220111 is a wasteful number, since it uses less digits than its factorization.

22112021220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12643083 (or 12643077 counting only the distinct ones).

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

Adding to 22112021220111 its reverse (11102212021122), we get a palindrome (33214233241233).

The spelling of 22112021220111 in words is "twenty-two trillion, one hundred twelve billion, twenty-one million, two hundred twenty thousand, one hundred eleven".