201000122110111 has 4 divisors (see below), whose sum is σ = 211579075905400. Its totient is φ = 190421168314824.

The previous prime is 201000122110069. The next prime is 201000122110129. The reversal of 201000122110111 is 111011221000102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201000122110111 - 2²⁷ = 200999987892383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201000122110091 and 201000122110100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000122110171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5289476897616 + ... + 5289476897653.

It is an arithmetic number, because the mean of its divisors is an integer number (52894768976350).

Almost surely, 2^{201000122110111} is an apocalyptic number.

201000122110111 is a deficient number, since it is larger than the sum of its proper divisors (10578953795289).

201000122110111 is a wasteful number, since it uses less digits than its factorization.

201000122110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10578953795288.

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

Adding to 201000122110111 its reverse (111011221000102), we get a palindrome (312011343110213).

The spelling of 201000122110111 in words is "two hundred one trillion, one hundred twenty-two million, one hundred ten thousand, one hundred eleven".