21122022011011 has 2 divisors, whose sum is σ = 21122022011012. Its totient is φ = 21122022011010.

The previous prime is 21122022010931. The next prime is 21122022011137. The reversal of 21122022011011 is 11011022022112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21122022011011 - 2⁷ = 21122022010883 is a prime.

It is a super-2 number, since 2×21122022011011² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21122022012011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10561011005505 + 10561011005506.

It is an arithmetic number, because the mean of its divisors is an integer number (10561011005506).

Almost surely, 2^{21122022011011} is an apocalyptic number.

21122022011011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21122022011011 is an equidigital number, since it uses as much as digits as its factorization.

21122022011011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21122022011011 its reverse (11011022022112), we get a palindrome (32133044033123).

The spelling of 21122022011011 in words is "twenty-one trillion, one hundred twenty-two billion, twenty-two million, eleven thousand, eleven".