22021011011 has 2 divisors, whose sum is σ = 22021011012. Its totient is φ = 22021011010.

The previous prime is 22021011007. The next prime is 22021011017. The reversal of 22021011011 is 11011012022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22021011011 - 2² = 22021011007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22021010983 and 22021011001.

It is not a weakly prime, because it can be changed into another prime (22021011017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010505505 + 11010505506.

It is an arithmetic number, because the mean of its divisors is an integer number (11010505506).

Almost surely, 2^22021011011 is an apocalyptic number.

22021011011 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021011011 is an equidigital number, since it uses as much as digits as its factorization.

22021011011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22021011011 its reverse (11011012022), we get a palindrome (33032023033).

The spelling of 22021011011 in words is "twenty-two billion, twenty-one million, eleven thousand, eleven".