111011222022021 has 12 divisors (see below), whose sum is σ = 160386413417100. Its totient is φ = 73990464195840.

The previous prime is 111011222022011. The next prime is 111011222022023. The reversal of 111011222022021 is 120220222110111.

111011222022021 is a `hidden beast` number, since 1 + 110 + 112 + 220 + 220 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21743475740100 + 89267746281921 = 4662990^2 + 9448161^2 .

It is not a de Polignac number, because 111011222022021 - 2⁶ = 111011222021957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111011222021985 and 111011222022003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111011222022023) 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, 1418054700 + ... + 1418132981.

It is an arithmetic number, because the mean of its divisors is an integer number (13365534451425).

Almost surely, 2^{111011222022021} is an apocalyptic number.

It is an amenable number.

111011222022021 is a deficient number, since it is larger than the sum of its proper divisors (49375191395079).

111011222022021 is a wasteful number, since it uses less digits than its factorization.

111011222022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836192036 (or 2836192033 counting only the distinct ones).

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

Adding to 111011222022021 its reverse (120220222110111), we get a palindrome (231231444132132).

The spelling of 111011222022021 in words is "one hundred eleven trillion, eleven billion, two hundred twenty-two million, twenty-two thousand, twenty-one".