10021122222211 has 4 divisors (see below), whose sum is σ = 10021140320800. Its totient is φ = 10021104123624.

The previous prime is 10021122222161. The next prime is 10021122222227. The reversal of 10021122222211 is 11222222112001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10021122222211 - 2¹¹ = 10021122220163 is a prime.

It is a super-2 number, since 2×10021122222211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021122202211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8191656 + ... + 9335173.

It is an arithmetic number, because the mean of its divisors is an integer number (2505285080200).

Almost surely, 2^{10021122222211} is an apocalyptic number.

10021122222211 is a deficient number, since it is larger than the sum of its proper divisors (18098589).

10021122222211 is an equidigital number, since it uses as much as digits as its factorization.

10021122222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18098588.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 10021122222211 its reverse (11222222112001), we get a palindrome (21243344334212).

The spelling of 10021122222211 in words is "ten trillion, twenty-one billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred eleven".