2111000211101 has 4 divisors (see below), whose sum is σ = 2114293503804. Its totient is φ = 2107706918400.

The previous prime is 2111000211091. The next prime is 2111000211113. The reversal of 2111000211101 is 1011120001112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1512651550201 + 598348660900 = 1229899^2 + 773530^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111000211101 - 2⁶ = 2111000211037 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 (2111000211701) 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, 1646645390 + ... + 1646646671.

It is an arithmetic number, because the mean of its divisors is an integer number (528573375951).

Almost surely, 2^{2111000211101} is an apocalyptic number.

It is an amenable number.

2111000211101 is a deficient number, since it is larger than the sum of its proper divisors (3293292703).

2111000211101 is an equidigital number, since it uses as much as digits as its factorization.

2111000211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293292702.

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

Adding to 2111000211101 its reverse (1011120001112), we get a palindrome (3122120212213).

The spelling of 2111000211101 in words is "two trillion, one hundred eleven billion, two hundred eleven thousand, one hundred one".