201100111022011 has 4 divisors (see below), whose sum is σ = 201100181034024. Its totient is φ = 201100041010000.

The previous prime is 201100111021969. The next prime is 201100111022017. The reversal of 201100111022011 is 110220111001102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201100111022011 - 2²⁷ = 201099976804283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201100111021982 and 201100111022000.

It is not an unprimeable number, because it can be changed into a prime (201100111022017) 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, 30504505 + ... + 36506506.

It is an arithmetic number, because the mean of its divisors is an integer number (50275045258506).

Almost surely, 2^{201100111022011} is an apocalyptic number.

201100111022011 is a deficient number, since it is larger than the sum of its proper divisors (70012013).

201100111022011 is an equidigital number, since it uses as much as digits as its factorization.

201100111022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70012012.

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

Adding to 201100111022011 its reverse (110220111001102), we get a palindrome (311320222023113).

The spelling of 201100111022011 in words is "two hundred one trillion, one hundred billion, one hundred eleven million, twenty-two thousand, eleven".