201010121002111 has 16 divisors (see below), whose sum is σ = 210611798369280. Its totient is φ = 191603852763840.

The previous prime is 201010121002069. The next prime is 201010121002123. The reversal of 201010121002111 is 111200121010102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201010121002111 - 2²⁵ = 201010087447679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201010121002091 and 201010121002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201010121002151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16591155 + ... + 26024731.

It is an arithmetic number, because the mean of its divisors is an integer number (13163237398080).

Almost surely, 2^{201010121002111} is an apocalyptic number.

201010121002111 is a deficient number, since it is larger than the sum of its proper divisors (9601677367169).

201010121002111 is a wasteful number, since it uses less digits than its factorization.

201010121002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9443934.

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

Adding to 201010121002111 its reverse (111200121010102), we get a palindrome (312210242012213).

The spelling of 201010121002111 in words is "two hundred one trillion, ten billion, one hundred twenty-one million, two thousand, one hundred eleven".