11011222020111 has 16 divisors (see below), whose sum is σ = 14694057455616. Its totient is φ = 7334602629536.

The previous prime is 11011222020107. The next prime is 11011222020151. The reversal of 11011222020111 is 11102022211011.

It is a happy number.

11011222020111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11011222020111 - 2² = 11011222020107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011222020101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22088041 + ... + 22581053.

It is an arithmetic number, because the mean of its divisors is an integer number (918378590976).

Almost surely, 2^{11011222020111} is an apocalyptic number.

11011222020111 is a deficient number, since it is larger than the sum of its proper divisors (3682835435505).

11011222020111 is a wasteful number, since it uses less digits than its factorization.

11011222020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499302.

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

Adding to 11011222020111 its reverse (11102022211011), we get a palindrome (22113244231122).

The spelling of 11011222020111 in words is "eleven trillion, eleven billion, two hundred twenty-two million, twenty thousand, one hundred eleven".