2112221011 has 2 divisors, whose sum is σ = 2112221012. Its totient is φ = 2112221010.

The previous prime is 2112220987. The next prime is 2112221021. The reversal of 2112221011 is 1101222112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2112221011 - 2⁹ = 2112220499 is a prime.

It is a super-2 number, since 2×2112221011² = 8922955198619724242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112220982 and 2112221000.

It is not a weakly prime, because it can be changed into another prime (2112221021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056110505 + 1056110506.

It is an arithmetic number, because the mean of its divisors is an integer number (1056110506).

Almost surely, 2^2112221011 is an apocalyptic number.

2112221011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112221011 is an equidigital number, since it uses as much as digits as its factorization.

2112221011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2112221011 is about 45958.9056767021. The cubic root of 2112221011 is about 1283.0584842486.

Adding to 2112221011 its reverse (1101222112), we get a palindrome (3213443123).

It can be divided in two parts, 211 and 2221011, that added together give a palindrome (2221222).

The spelling of 2112221011 in words is "two billion, one hundred twelve million, two hundred twenty-one thousand, eleven".