1011222122011 has 4 divisors (see below), whose sum is σ = 1011227216472. Its totient is φ = 1011217027552.

The previous prime is 1011222122003. The next prime is 1011222122023. The reversal of 1011222122011 is 1102212221101.

1011222122011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1011222122011 - 2³ = 1011222122003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011222123011) 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, 2236885 + ... + 2650678.

It is an arithmetic number, because the mean of its divisors is an integer number (252806804118).

Almost surely, 2^{1011222122011} is an apocalyptic number.

1011222122011 is a deficient number, since it is larger than the sum of its proper divisors (5094461).

1011222122011 is an equidigital number, since it uses as much as digits as its factorization.

1011222122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094460.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1011222122011 its reverse (1102212221101), we get a palindrome (2113434343112).

The spelling of 1011222122011 in words is "one trillion, eleven billion, two hundred twenty-two million, one hundred twenty-two thousand, eleven".