201121000111100 has 36 divisors (see below), whose sum is σ = 437474175511800. Its totient is φ = 80256399072960.

The previous prime is 201121000111037. The next prime is 201121000111111. The reversal of 201121000111100 is 1111000121102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2399970035 + ... + 2400053834.

Almost surely, 2^{201121000111100} is an apocalyptic number.

201121000111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201121000111100 is an abundant number, since it is smaller than the sum of its proper divisors (236353175400700).

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

201121000111100 is a wasteful number, since it uses less digits than its factorization.

201121000111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800024302 (or 4800024295 counting only the distinct ones).

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

Adding to 201121000111100 its reverse (1111000121102), we get a palindrome (202232000232202).

The spelling of 201121000111100 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred eleven thousand, one hundred".