21220122101011 has 2 divisors, whose sum is σ = 21220122101012. Its totient is φ = 21220122101010.

The previous prime is 21220122100981. The next prime is 21220122101041. The reversal of 21220122101011 is 11010122102212.

It is a balanced prime because it is at equal distance from previous prime (21220122100981) and next prime (21220122101041).

It is a cyclic number.

It is not a de Polignac number, because 21220122101011 - 2³⁵ = 21185762362643 is a prime.

It is not a weakly prime, because it can be changed into another prime (21220122101041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610061050505 + 10610061050506.

It is an arithmetic number, because the mean of its divisors is an integer number (10610061050506).

Almost surely, 2^{21220122101011} is an apocalyptic number.

21220122101011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21220122101011 is an equidigital number, since it uses as much as digits as its factorization.

21220122101011 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 21220122101011 its reverse (11010122102212), we get a palindrome (32230244203223).

The spelling of 21220122101011 in words is "twenty-one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred one thousand, eleven".