1101200211111 has 48 divisors (see below), whose sum is σ = 1986314150912. Its totient is φ = 528048037440.

The previous prime is 1101200211107. The next prime is 1101200211211. The reversal of 1101200211111 is 1111120021011.

It is not a de Polignac number, because 1101200211111 - 2² = 1101200211107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101200211101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16635151 + ... + 16701216.

Almost surely, 2^{1101200211111} is an apocalyptic number.

1101200211111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1101200211111 is a deficient number, since it is larger than the sum of its proper divisors (885113939801).

1101200211111 is a wasteful number, since it uses less digits than its factorization.

1101200211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33336412 (or 33336401 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1101200211111 its reverse (1111120021011), we get a palindrome (2212320232122).

The spelling of 1101200211111 in words is "one trillion, one hundred one billion, two hundred million, two hundred eleven thousand, one hundred eleven".