201111210001101 has 4 divisors (see below), whose sum is σ = 268148280001472. Its totient is φ = 134074140000732.

The previous prime is 201111210001033. The next prime is 201111210001103. The reversal of 201111210001101 is 101100012111102.

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 not a de Polignac number, because 201111210001101 - 2¹⁴ = 201111209984717 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 (201111210001103) 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, 33518535000181 + ... + 33518535000186.

It is an arithmetic number, because the mean of its divisors is an integer number (67037070000368).

Almost surely, 2^{201111210001101} is an apocalyptic number.

It is an amenable number.

201111210001101 is a deficient number, since it is larger than the sum of its proper divisors (67037070000371).

201111210001101 is an equidigital number, since it uses as much as digits as its factorization.

201111210001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67037070000370.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 201111210001101 its reverse (101100012111102), we get a palindrome (302211222112203).

The spelling of 201111210001101 in words is "two hundred one trillion, one hundred eleven billion, two hundred ten million, one thousand, one hundred one".