11011211022111 has 8 divisors (see below), whose sum is σ = 14797217961984. Its totient is φ = 7283005715160.

The previous prime is 11011211022109. The next prime is 11011211022167. The reversal of 11011211022111 is 11122011211011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11011211022111 - 2¹ = 11011211022109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011211022101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14450407785 + ... + 14450408546.

It is an arithmetic number, because the mean of its divisors is an integer number (1849652245248).

Almost surely, 2^{11011211022111} is an apocalyptic number.

11011211022111 is a deficient number, since it is larger than the sum of its proper divisors (3786006939873).

11011211022111 is a wasteful number, since it uses less digits than its factorization.

11011211022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28900816461.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11011211022111 its reverse (11122011211011), we get a palindrome (22133222233122).

The spelling of 11011211022111 in words is "eleven trillion, eleven billion, two hundred eleven million, twenty-two thousand, one hundred eleven".