201121002100111 has 8 divisors (see below), whose sum is σ = 209865671606880. Its totient is φ = 192376355769312.

The previous prime is 201121002100087. The next prime is 201121002100163. The reversal of 201121002100111 is 111001200121102.

It is a happy number.

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 201121002100111 - 2³³ = 201112412165519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201121002100091 and 201121002100100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121002100181) 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, 13274601 + ... + 24051133.

It is an arithmetic number, because the mean of its divisors is an integer number (26233208950860).

Almost surely, 2^{201121002100111} is an apocalyptic number.

201121002100111 is a deficient number, since it is larger than the sum of its proper divisors (8744669506769).

201121002100111 is a wasteful number, since it uses less digits than its factorization.

201121002100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11587985.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 201121002100111 its reverse (111001200121102), we get a palindrome (312122202221213).

The spelling of 201121002100111 in words is "two hundred one trillion, one hundred twenty-one billion, two million, one hundred thousand, one hundred eleven".