201121112200111 has 8 divisors (see below), whose sum is σ = 201203775300560. Its totient is φ = 201038451821568.

The previous prime is 201121112200037. The next prime is 201121112200139. The reversal of 201121112200111 is 111002211121102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201121112200111 - 2¹⁷ = 201121112069039 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 (201121112200171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154375045 + ... + 155672401.

It is an arithmetic number, because the mean of its divisors is an integer number (25150471912570).

Almost surely, 2^{201121112200111} is an apocalyptic number.

201121112200111 is a deficient number, since it is larger than the sum of its proper divisors (82663100449).

201121112200111 is a wasteful number, since it uses less digits than its factorization.

201121112200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360953.

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

Adding to 201121112200111 its reverse (111002211121102), we get a palindrome (312123323321213).

The spelling of 201121112200111 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred twelve million, two hundred thousand, one hundred eleven".