1111101212011 has 24 divisors (see below), whose sum is σ = 1336035757056. Its totient is φ = 920382114960.

The previous prime is 1111101211973. The next prime is 1111101212041. The reversal of 1111101212011 is 1102121011111.

It is not a de Polignac number, because 1111101212011 - 2¹¹ = 1111101209963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111101211982 and 1111101212000.

It is not an unprimeable number, because it can be changed into a prime (1111101212041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 601240 + ... + 1607386.

It is an arithmetic number, because the mean of its divisors is an integer number (55668156544).

Almost surely, 2^{1111101212011} is an apocalyptic number.

1111101212011 is a deficient number, since it is larger than the sum of its proper divisors (224934545045).

1111101212011 is a wasteful number, since it uses less digits than its factorization.

1111101212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006919 (or 1006912 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1111101212011 its reverse (1102121011111), we get a palindrome (2213222223122).

The spelling of 1111101212011 in words is "one trillion, one hundred eleven billion, one hundred one million, two hundred twelve thousand, eleven".