201111211104 has 24 divisors (see below), whose sum is σ = 527916929400. Its totient is φ = 67037070336.

The previous prime is 201111211079. The next prime is 201111211111. The reversal of 201111211104 is 401112111102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047454129 + ... + 1047454320.

It is an arithmetic number, because the mean of its divisors is an integer number (21996538725).

Almost surely, 2^201111211104 is an apocalyptic number.

201111211104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201111211104 is an abundant number, since it is smaller than the sum of its proper divisors (326805718296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201111211104 is a wasteful number, since it uses less digits than its factorization.

201111211104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094908462 (or 2094908454 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201111211104 its reverse (401112111102), we get a palindrome (602223322206).

The spelling of 201111211104 in words is "two hundred one billion, one hundred eleven million, two hundred eleven thousand, one hundred four".