1111001211101 has 16 divisors (see below), whose sum is σ = 1128103335744. Its totient is φ = 1094020452864.

The previous prime is 1111001211043. The next prime is 1111001211169. The reversal of 1111001211101 is 1011121001111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1111001211101 - 2¹⁴ = 1111001194717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111001211401) 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, 37263266 + ... + 37293068.

It is an arithmetic number, because the mean of its divisors is an integer number (70506458484).

Almost surely, 2^{1111001211101} is an apocalyptic number.

It is an amenable number.

1111001211101 is a deficient number, since it is larger than the sum of its proper divisors (17102124643).

1111001211101 is a wasteful number, since it uses less digits than its factorization.

1111001211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31820.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1111001211101 its reverse (1011121001111), we get a palindrome (2122122212212).

The spelling of 1111001211101 in words is "one trillion, one hundred eleven billion, one million, two hundred eleven thousand, one hundred one".