1011222101011 has 4 divisors (see below), whose sum is σ = 1011242872000. Its totient is φ = 1011201330024.

The previous prime is 1011222100927. The next prime is 1011222101033. The reversal of 1011222101011 is 1101012221101.

It is a happy number.

1011222101011 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 1011222101011 - 2⁷ = 1011222100883 is a prime.

It is a super-3 number, since 3×1011222101011³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011222100982 and 1011222101000.

It is not an unprimeable number, because it can be changed into a prime (1011222131011) 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, 10312296 + ... + 10409893.

It is an arithmetic number, because the mean of its divisors is an integer number (252810718000).

Almost surely, 2^{1011222101011} is an apocalyptic number.

1011222101011 is a deficient number, since it is larger than the sum of its proper divisors (20770989).

1011222101011 is an equidigital number, since it uses as much as digits as its factorization.

1011222101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20770988.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1011222101011 its reverse (1101012221101), we get a palindrome (2112234322112).

The spelling of 1011222101011 in words is "one trillion, eleven billion, two hundred twenty-two million, one hundred one thousand, eleven".