201111212111000 has 32 divisors (see below), whose sum is σ = 470600236342080. Its totient is φ = 80444484844000.

The previous prime is 201111212110979. The next prime is 201111212111021. The reversal of 201111212111000 is 111212111102.

It is an interprime number because it is at equal distance from previous prime (201111212110979) and next prime (201111212111021).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100555605056 + ... + 100555607055.

It is an arithmetic number, because the mean of its divisors is an integer number (14706257385690).

Almost surely, 2^{201111212111000} is an apocalyptic number.

201111212111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201111212111000 is an abundant number, since it is smaller than the sum of its proper divisors (269489024231080).

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

201111212111000 is a wasteful number, since it uses less digits than its factorization.

201111212111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201111212132 (or 201111212118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201111212111000 its reverse (111212111102), we get a palindrome (201222424222102).

The spelling of 201111212111000 in words is "two hundred one trillion, one hundred eleven billion, two hundred twelve million, one hundred eleven thousand".