22021010011 has 32 divisors (see below), whose sum is σ = 29605298688. Its totient is φ = 15818595840.

The previous prime is 22021009979. The next prime is 22021010057. The reversal of 22021010011 is 11001012022.

It is a cyclic number.

It is not a de Polignac number, because 22021010011 - 2⁵ = 22021009979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22021010011.

It is not an unprimeable number, because it can be changed into a prime (22021010111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 773811 + ... + 801763.

It is an arithmetic number, because the mean of its divisors is an integer number (925165584).

Almost surely, 2^22021010011 is an apocalyptic number.

22021010011 is a deficient number, since it is larger than the sum of its proper divisors (7584288677).

22021010011 is a wasteful number, since it uses less digits than its factorization.

22021010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28771.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22021010011 its reverse (11001012022), we get a palindrome (33022022033).

The spelling of 22021010011 in words is "twenty-two billion, twenty-one million, ten thousand, eleven".