10011122221011 has 4 divisors (see below), whose sum is σ = 13348162961352. Its totient is φ = 6674081480672.

The previous prime is 10011122220971. The next prime is 10011122221027. The reversal of 10011122221011 is 11012222111001.

It is a happy number.

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 10011122221011 - 2²⁶ = 10011055112147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10011122221511) 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, 1668520370166 + ... + 1668520370171.

It is an arithmetic number, because the mean of its divisors is an integer number (3337040740338).

Almost surely, 2^{10011122221011} is an apocalyptic number.

10011122221011 is a deficient number, since it is larger than the sum of its proper divisors (3337040740341).

10011122221011 is an equidigital number, since it uses as much as digits as its factorization.

10011122221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337040740340.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10011122221011 its reverse (11012222111001), we get a palindrome (21023344332012).

The spelling of 10011122221011 in words is "ten trillion, eleven billion, one hundred twenty-two million, two hundred twenty-one thousand, eleven".