2011112021101 has 4 divisors (see below), whose sum is σ = 2011227493600. Its totient is φ = 2010996548604.

The previous prime is 2011112021099. The next prime is 2011112021153. The reversal of 2011112021101 is 1011202111102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2011112021101 - 2¹ = 2011112021099 is a prime.

It is a super-2 number, since 2×2011112021101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011112021161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57710121 + ... + 57744958.

It is an arithmetic number, because the mean of its divisors is an integer number (502806873400).

Almost surely, 2^{2011112021101} is an apocalyptic number.

It is an amenable number.

2011112021101 is a deficient number, since it is larger than the sum of its proper divisors (115472499).

2011112021101 is a wasteful number, since it uses less digits than its factorization.

2011112021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115472498.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2011112021101 its reverse (1011202111102), we get a palindrome (3022314132203).

Subtracting from 2011112021101 its reverse (1011202111102), we obtain a palindrome (999909909999).

The spelling of 2011112021101 in words is "two trillion, eleven billion, one hundred twelve million, twenty-one thousand, one hundred one".