2011021001111 has 16 divisors (see below), whose sum is σ = 2024785486080. Its totient is φ = 1997310552000.

The previous prime is 2011021001083. The next prime is 2011021001161. The reversal of 2011021001111 is 1111001201102.

It is a cyclic number.

It is not a de Polignac number, because 2011021001111 - 2⁶ = 2011021001047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011021001092 and 2011021001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011021001161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131371520 + ... + 131386826.

It is an arithmetic number, because the mean of its divisors is an integer number (126549092880).

Almost surely, 2^{2011021001111} is an apocalyptic number.

2011021001111 is a deficient number, since it is larger than the sum of its proper divisors (13764484969).

2011021001111 is a wasteful number, since it uses less digits than its factorization.

2011021001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17014.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2011021001111 its reverse (1111001201102), we get a palindrome (3122022202213).

The spelling of 2011021001111 in words is "two trillion, eleven billion, twenty-one million, one thousand, one hundred eleven".